TY  - BOOK
AU  - Balls, M. 
AU  - Wild, A. E. 
TI  - The early development of mammals : the second symposium of the British Society for Developmental Biology
SN  - 0521207711
U1  - 599.03 SYM.2 
PY  - 1975///.
CY  - Cambridge : 
PB  - Cambridge University Press, 
KW  - Mammals--Embryology
N1  - Includes index.
ER  -