00599nam a22002057a 4500 BD-DhUL 20141229171155.0 141229s1951 -usa|||| |||| 001 0 eng d BD-DhUL BD-DhUL 597.8 RUF Rugh, Roberts. The frog : its reproduction and development / Roberts Rugh. Philadelphia : Blakiston, c1951. x, 336 p. : ill. ; 24 cm. IRS 25.00 Includes bibliography and index. Frogs -- Reproduction. Frogs -- Embryology. ddc BK 25374 25374 0 0 ddc 0 597_800000000000000_RUF 0 NFIC 48494 DUSL DUSL GEN 1958-01-14 Purchased 597.8 RUF A2819 2014-12-29 2014-12-29 BK