na INLIS000000000000215 20231013093846 0010-0921000215 231013 g 0 eng en 591 591 MAY p Mayr, Ernst Principles of systematic zoology / E. Gorton Linsey New York : McGraw Hill Publishing, 1969 SPECIES TAXONOMY CLASSIFICATION 591 MAY p x, 427 p : ill. ; 20 cm. Usinger, Robert L. 0063/D/2008