TY  - BOOK
AU  - Mayr,Ernst
TI  - Principles of systematic zoology
AV  - QL351 .M29
U1  - 591 
PY  - 1969///]
CY  - New York
PB  - McGraw-Hill
KW  - Animals
KW  - Classification
KW  - Zoology
N1  - Bibliography: p. 381-395
ER  -