Bertalanffy, Ludwig von <br/><br/>
Modern theories of development  an introduction to theoretical biology 
by Ludwig von Bertalanffy ; translated and adpated by J. H. Woodger. 
 - New York  Harper  1962. 
 - xiv, 204 p.  21 cm. 
<br/><br/> "First Harper torchbook edition." 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biology<br/>Embryology<br/>Embryology