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040			_aBangabasi College Library
041			_aEnglish
082			_aZOO 591 _bMEn77
100			_aMAYR, E.
245			_aPrinciples of systematics zoology _cErnst Mayr
260			_c1977 _bTata Mcgraw Hill _aNew Delhi
300			_axii,428p.
500			_aContain with glossary
650			_aANIMAL TAXONOMY, _aSYSTEMATIC ZOOLOGY
942			_cBK
999			_c205154 _d205154