1. Clutton-Brock TH, Harvey PH (1977a) Primate ecology and social organisation. J Zool 183:1?39
2. Clutton-Brock TH, Harvey PH (1977b) Species differences in feeding and ranging behaviour in primates. In: Clutton-Brock TH (ed) Primate ecology: studies of feeding and ranging behaviour in lemurs, monkeys and apes. Academic Press, London, pp 557?584
3. Clutton-Brock TH, Harvey PH (1979) Home range size, population density and phylogeny in primates. In: Bernstein IS, Smith EO (eds) Primate ecology and human origins. Garland, New York, pp 201?214
4. Coelho Am, Jr. (1974) Socio-bioenergetics and sexual dimorphism in primates. Primates 15:263?269
5. Crampton E, Lloyd L (1959) Fundamentals of nutrition. Freeman, San Francisco, CA