TY  - BOOK
AU  - Cook,L.M.
TI  - Coefficients of natural selection
SN  - 0091041902 :
U1  - 575.1 
PY  - 1971///
CY  - London
PB  - Hutchinson
KW  - Genetics
KW  - Natural selection
N1  - Includes bibliographical references and index
ER  -