Allee, W.C. <br/><br/>
Synoptic key to the Phyla, Classes and Orders of Animals. 
 with particular reference to fresh - water and terrestrial forms of the moist temperate region in North America  

 - Chicago, illinois  The university of Chicago Press  1923 
 - viii, 63p. ; 19 cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science
<br/><br/><label>Universal Decimal Class. No.: </label>13  / N14