| Lang, E.M., 1994. Mit Tieren unterwegs: Aus dem Reisebuch eines Zoodirektors. Basel, E.M. Lang, pp. 1-200
|
|
| Lang, E.M., 1977. The Indian Rhino (Rhinoceros unicornis ) in captivity. Journal of the Bombay Natural History Society 74 (1): 160
|
|
| Lang, E.M., 1975. The Indian rhino in captivity: pp. 293-302, figs. 1-4, table 1
| In: Martin, R.D. Breeding endangered species in captivity. London etc., Academic Press: pp. i-xxv, 1-420 |
|
|
| Lang, E.M., 1972. Fertility problems in captive animals. British Veterinary Journal 128 (9): 433-438
|
|
| Lang, E.M., 1972. Present-day rhinoceros: pp. 36-42
| In: Grzimek, B. Grzimek's Animal life encyclopedia, vol. 13 Mammals IV. New York etc., Van Nostrand Reinhold: pp. 1-566 |
|
|
| Lang, E.M., 1972. Asiatic rhinoceroses: pp. 42-48
| In: Grzimek, B. Grzimek's Animal life encyclopedia, vol. 13 Mammals IV. New York etc., Van Nostrand Reinhold: pp. 1-566 |
|
|
| Lang, E.M., 1971. Tiere im Zoo. Photos Elsbeth Knol-Siegrist. Thun and Munchen, Ott Verlag, pp. 1-104
|
|
| Hoesli, P.; Lang, E.M., 1970. Zum Chromosomenbild des Indischen Panzernashorns (Rhinoceros unicornis). Schweizer Archiv fur Tierheilkunde 112: 534-535, figs. 1-2
|
|
|