TY  - BOOK
AU  - Leibowitz,Lila
TI  - Females, males, families: a biosocial approach 
SN  - 0878721584
PY  - 1978///
CY  - North Scituate, Mass.
PB  - Duxbury Press
KW  - Family
KW  - Sex differences
KW  - Kin selection (Evolution)
KW  - Familial behavior in animals
ER  -