Kerr, Norman S, <br/><br/>
Principles of development 
by Norman S. Kerr. 
 - Dubuque, Iowa  Wm. C. Brown Company Publishers  1967. 
 - ix, 115 pages :    illustration ;    23 cm. 
<br/><br/>Includes bibliographies. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Embryology