TY  - BOOK
AU  - ENGER,ELDON D.
AU  - KARMELINK,J.P.
AU  - ROSS,FREDENCK
TI  - CONCEPTS IN BIOLOGY / 
U1  - 574 
PY  - 1994///
CY  - [S.N] : 
PB  - W.M.C.BROWNN PUBLISERS ، 
KW  - BIOLOGY
KW  - HUMAN BIOLOGY
KW  - SEX (BIOLOGY)
ER  -