TY  - BOOK
AU  - Darlington,C.D.
TI  - The evolution of genetic systems 
U1  - 580 DAR  
PY  - 1946///.
CY  - Cambridge : 
PB  - Cambridge University Press, 
KW  - Variation (Biology)
KW  - Heredity
KW  - Genetics
N1  - Includes index.
ER  -