TY  - BOOK
AU  - Darlington,C.D., x
AU  - x
TI  - Evolution of genetic systems: x
SN  - x
U1  - 591.15/DAE 
PY  - 1958///
CY  - Lond.
PB  - Oliver and Boyd
KW  - Genetics
KW  - Zoology
N1  - x
ER  -