000 00344 a2200133 4500
245 1 _aSexual dimorphis in coloration in the viper Cerastes vipera L.
260 _aChicago
_c1959
650 _aSexual Dimorphism
100 1 _aMarx, H.
_d
300 _a2 p.
440 _aNo. 164
_vNatural History Miscellanea
942 _2udc
_cB
901 _a59709
999 _c56261
_d56261