TY  - BOOK
AU  - Gopalakrishnan,T.S.
AU  - Sambasiviah,Itta
TI  - Principles of organic evolution
SN  - 8170403944
U1  - 576.8 
PY  - 1970///
CY  - Madras
PB  - Pearl
KW  - Evolution
N1  - Includes references
ER  -