TY  - BOOK
AU  - Schmalhavsen I I
AU  -  Dobzhansky Theodosius Ed.
AU  -  Dordick Isadore Tr.
TI  - Factors of evolution: The theory of stabilization selection
U1  - G:66, H91 
PY  - 1949///
CY  - Philadelphia
PB  - Blakiston         
KW  - Biology
ER  -