Verma, P.S. Chordate embryology: developmental biology of nonchordates and chordates P.S. Verma, V.K. Agarwal and B.S. Tyagi - 9th rev. and enl. - New Delhi S.Chand 1989 - viii, 426 Subjects--Topical Terms: EmbryologyVertebrates Dewey Class. No.: 596.33 / VER M9