| Mitchell, P.C., 1933. Report on the additions to the Society's Menagerie during the months June to September 1933. Proceedings of the Zoological Society of London 1933 (4): 1119
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| Mitchell, P.C., 1933. Report on the additions to the Society's Menagerie during the month of May 1933. Proceedings of the Zoological Society of London 1933 (3): 853
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| Mitchell, P.C., 1933. Official guide to the gardens and aquarium of the Zoological Society of London, 30th edition. London, Zoological Society of London, pp. 1-129
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| Mitchell, P.C., 1928. Report on the additions to the Society's Menagerie during the months of May, June, July, August and September 1928. Proceedings of the Zoological Society of London 1928 (2): 1036
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| Mitchell, P.C., 1925. Report on the additions to the Society's Menagerie during the months of November and December 1924. Proceedings of the Zoological Society of London 1925 (1): 327
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| Mitchell, P.C., 1923. Report on the additions to the Society's Menagerie during the months of November and December 1922. Proceedings of the Zoological Society of London 1923 February 6: 175
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| Mitchell, P.C., 1912. Report on the additions to the Society's Menagerie uring the months of May, June, July, August and September 1912. Proceedings of the Zoological Society of London 1912 October 29: 908
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| Mitchell, P.C., 1911. On longevity and relative viability in mammals and birds with a note on the theory of longevity. Proceedings of the Zoological Society of London 1911 (1): 425-548
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| Mitchell, P.C., 1911. Report on the additions to the Society's Menagerie during the month of May, 1911. Proceedings of the Zoological Society of London 1911 June 27: 985
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| Mitchell, P.C., 1911. Remarks upon a pair of young African rhinoceroses seen at Mr Hagenbeck's Zoological Park at Stellingen. Proceedings of the Zoological Society of London 1911 June 27: 987-988
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| Mitchell, P.C., 1911. Strauss und Rhinozeros im Hagenbeckschen Tiergarten. Zoologische Garten A.F. 52: 219-220
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| Mitchell, P.C., 1911. Official guide to the gardens and aquarium of the Zoological Society of London, 9th edition. London, Zoological Society of London, pp. 1-112
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| Mitchell, P.C., 1911. Illustrated official guide to the London Zoological Society's gardens in Regents Park, 9th edition. London, Zoo
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| Mitchell, P.C., 1906. Report on the additions to the Society's menagerie during the months June, July, August and September 1906. Proceedings of the Zoological Society of London 1906 June 9: 758-760
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| Mitchell, P.C., 1905. On the intestinal tract of mammals. Transactions of the Zoological Society of London 17: 437-536, figs. 1-50
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