Beer, Gavin De.
Embryos and ancestors / Gavin De Beer. - 3rd ed. - Oxford : Clarendon, c1958. - xii, 197 p. : ill. ; 21 cm.
includes bibliographical references and index.
Embryology
Evolution (Biology)
Biological Evolution.
591.3 / DEE
Embryos and ancestors / Gavin De Beer. - 3rd ed. - Oxford : Clarendon, c1958. - xii, 197 p. : ill. ; 21 cm.
includes bibliographical references and index.
Embryology
Evolution (Biology)
Biological Evolution.
591.3 / DEE