Nieuwkoop,Pieter D Primordial germ cells in the chordates : embryo genesis and phylogenesis/ by Peter D Nieuwkoop and Lien A Sutasurya - Cambridge: Cambridge University Press, 1979. - xi,187p. - Developmental and cell biology series. . ISBN: 0521223032 Subjects--Topical Terms: Chordata--Embryology Germ cells Dewey Class. No.: 596.03 / NIE/P