McEwen, Robert Stanley,  1888- <br/><br/>
Vertebrate embryology 
Robert S. McEwen 
 - 4th ed. 
 - New Delhi  Oxford & IBH Publishing  1969 
 - 701 p. : ill. ; 22 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Embryology--Vertebrates