000 004600000a22001570004500
008 140223b1959 xxu||||| |||| 00| 0 eng d
041 _aEng
080 _aK:6 J9
082 _aK:6 J9
100 _aDE GEORGE Frances V
700 _aOSBORNE Richard H
245 _aGenetic basis of morphological variation: Evaluation and application of the twin study method.
260 _aCambridge (Mass.)
_bHarvard Univ. Pr.
_c1959
650 _aG:6
650 _aZOOLOGY
999 _c79182
_d79182