TY  - BOOK
AU  -  Sheppard,P.M.
TI  -  Natural selection and heredity / 
PY  - 1967///
CY  -  London : 
PB  -  Hutchinson, 
KW  -  Natural selection
KW  -  Genetics
N1  -  Includes bibliographical references (p. 184-186)
ER  -