|
Bannikov Ag,. (1981). Kulan Moskau.
|
|
Berger J,. (1981). The role of risks in mammalian combat: Zebra and onager fights. Z Tierpsychol 56, , 297–304.
|
|
Gingerich Pd,. (1981). Variation, sexual dimorphism, and social structure in the early Eocene horse Hyracotherium. Paleobiol, , 443–455.
|
|
HUGHES RD et al,. (1981). Interactions between Camague horses and horseflies. Bull Entomol Res 71, , 227–242.
|
|
Clutton-Brock, J. (1981). Domesticated animals from early times. Austin: Univ of Texas Press.
|
|
Wittenberger, J. F. (1981). Animal Social Behavior. Boston: Duxbury Press.
|
|
Bean, P. (1981). Punishment: A Philosophical and Criminological Enquiry.
|
|
Houpt, K. A. (1981). Equine behavior problems in relation to humane management. Int. J. Stud. Anim. Prob., 2(6), 329–337.
|
|
Leblanc Ma, B. M. (1981). Mise au point d`une épreuve destinée de la reconnaissance du jeune par la mère chez chaval. Biol Beh, 6, 283–290.
|
|
CLAYTON HM et al,. (1981). Some studies of comparative aspects of sexual behaviour in ponies and donkeys. App Anim Ethol, 7, 169–174.
|
