| Type |  Book |
| ชื่อเรื่อง | Variation in mammalian populations : the proceedings of a symposium held at the Zoological Society of London on 14 and 15 November, 1969 / edited by R. J. Berry [and] H. N. Southern |
| พิมพลักษณ์ | [New York] : Published for the Zoological Society of London by Academic Press, 1970 |
| รูปเล่ม | 403 p. : ill., maps ; 24 cm |
| หัวเรื่อง | Mammal populations --Congresses [] |
| | Population genetics --Congresses [] |
| | Zoology --Variation --Congresses [] |