Barth, Lester George. The energetics of development : a study of metabolism in the frog egg / [by] Lester G. Barth [and] Lucena J. Barth. - New York : Columbia University Press, 1954. - Columbia bicentennial editions and studies . Includes bibliographical references. LCCN: 54006712 /L Subjects--Topical Terms: Ovum.Amphibians -- Eggs.--Amphibians -- Eggs.Frogs.Metabolism.EmbryologyOvum -- metabolism--Ovum -- metabolismRanidae -- embryology--Ranidae -- embryology LC Class. No.: QL965 / .B33 Dewey Class. No.: 611.013