TY  - BOOK
AU  - MAYR, E.
TI  - Principles of systematics zoology
U1  - ZOO 591 
PY  - 1977///
CY  - New Delhi
PB  - Tata Mcgraw Hill
KW  - ANIMAL TAXONOMY
KW  - SYSTEMATIC ZOOLOGY
N1  - Contain with glossary
ER  -