Verma, P. S. Chordate Embryology: developmental biology of nonchordates and chordates by P. S. Verma and V. K. Agarwal - New Delhi: S. Chand and Company Ltd., 1975. - xvi, 667p. ISBN: 8121902614 9788121902618 Subjects--Topical Terms: Chordate embryology Dewey Class. No.: 596 VER