TY  - BOOK
AU  - Mayr, Ernst
TI  - Systematics and the Origin of Species: from the Viewpoint of a Zoologist
U1  - Zb465 
PY  - 1942///
CY  - New York
PB  - Columbia University Press
KW  - Species
N1  - Zb mean Botany Page 500-509 (Acc. No. Zb1-Zb343) & Page 578-581 (Acc. No. Zb344-Zb468)
ER  -