TY  - BOOK
AU  - Mayr,Ernst
AU  - Linsley,E.Gorton
AU  - Usinger,Robert L.
TI  - Methods and principles of systematic zoology
T2  - McGraw-Hill publications in the zoological sciences
PY  - 1953///
CY  - New York (N.Y.)
PB  - MacGraw-Hill
KW  - RMCA
KW  - zv systematics & taxonomy
ER  -