Welsh Da,. (1973). The life of Sable Island's wild horses. Nature Canada, 2, 7–14.
|
Joubert E,. (1973). Habitat preference, distribution and status of the Hartmann zebra in South West Africa. Madoqua, 1(7), 5–15.
|
Goodall, J. (1973). Cultural elements in a chimpanzee community. In E. W. Menzel (Ed.), Precultural primate behaviour (Vol. 1, pp. 144–184). Basel: Karger.
|
Gogan Pjp,. (1973). Some aspects of nutrient utilization by Burchell's Zebra in the Serengeti-Mara region.
|
Solomatin Ao,. (1973). Kulan. Moskau.
|
Jerison, H. J. (1973). Evolution of the Brain and Intelligence. Riverport: Academic Press.
|