Nelsen, Olin Everett, 1898-  Nelsen, Olin Everett, 1898- <br/><br/>
Comparative embryology of the vertebrates :  with 2057 drawings and photos. grouped as 380 illus. 

 - New York :  Blakiston,  [1953] 
<br/><br/><label>LCCN: </label>52011811 /L/r89 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Vertebrates -- Embryology.--Vertebrates -- Embryology.<br/>Comparative embryology.
<br/><br/><label>LC Class. No.: </label>QL959  / .N4 
<br/><br/><label>Dewey Class. No.: </label>591.33