TY  - BOOK
AU  - Berry,R.J.
AU  - Southern,H.N.
ED  - Zoological Society of London.
TI  - Variation in mammalian populations: the proceedings of a symposium held at the Zoological Society of London on 14 and 15 November, 1969 
SN  - 0126133263
PY  - 1970///
CY  - New York
PB  - Published for the Zoological Society of London by Academic Press
ER  -