000 00521nab a22001697u 4500
003 EC-PaCDF
008 060603t19971997||||||||||||||||||||eng||
041 _aeng
082 _a598.135
_a598.135
100 _aGrant, P. R., Grant, B. R.
245 _aGenetics and the origin of bird species.
_b
_cGrant, P. R., Grant, B. R.
260 _c1997
300 _a: 7768-7775.
_bArticle
546 _aEnglish
653 _aEV, AV
_aGenetics and the origin of bird species.
773 _tProceedings National Academy Sciences, USA 94
999 _c4065
_d4065