"Embryo." . . "Oursins Embryologie." . . "Embryologie en ontwikkeling der dieren." . . "Oursins Développement." . . "Embriologia" . . "Dierenbiochemie." . . "Jeżowce." . . . "The sea urchin embryo biochemistry and morphogenesis" . . . . "The Sea urchin embryo--biochemistry and morphogenesis" . . . "The sea urchin embryo--biochemistry and morphogenesis" . "The sea urchin embryo--biochemistry and morphogenesis"@en . . . "Electronic books"@en . "Electronic books" . . "The sea urchin embryo : biochemistry and morphogenesis. Ed. by G. Czihak, with the assistance of R. Peter. Contributors - F. Baltzer (et al.). Foreword by J. Brachet" . . . "The sea urchin embryo : biochemistry and morphogenesis" . . . . . . . . . . . . . . . . . . . . . . . . . . . . "The Sea Urchin Embryo Biochemistry and Morphogenesis" . "The Sea Urchin Embryo Biochemistry and Morphogenesis"@en . . . . . . . . . . "Échinides, Embryon d'" . . "Echinidés, Embryon d'" . "Equinoderms" . . . . "Jeżowce embriologia." . . "Equinodermas (Biologia)" . . "Embryonalentwicklung." . . "Embryologie." . . "Jeżowce morfogeneza." . . "Sea Urchins embryology." . . "Sea urchins Embryology." . "Echinodermaten." . . "Seeigel." . . "Oursins Embryons." . .