TY  - BOOK
AU  - Patterson, J T; Stone, W S
TI  - Evolution in the genus drosophila
U1  - 595.774  PAT-E 
PY  - 1952///
CY  - Macmillan & Co. Ltd., New York
KW  - Cyclorrhapha-- Drosophila-- Tsetse Fly
ER  -