000			00354nam a22001337a 4500
041			_aeng
082	0		_a591 MAY
100	1		_aMayr, Ernst
245	1	0	_aPrinciples of systematic zoology _cErnst Mayr
260			_aNew York : _bMcGraw-Hill Book Company, _c1969.
300			_axi, 428 p. ; _c24 cm.
500			_aIncludes index.
650		4	_aZoology
999			_c417955 _d417890