Zirkle, Conway,  1895- <br/><br/>
Evolution, Marxian biology, and the social scene / 
Conway Zirkle. 
 - Philadelphia :  University of Pennsylvania press,  1959. 
 - 527 p. ;  22 cm. 
<br/><br/>Includes bibliography and index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Genetics--History.<br/>Evolution (Biology)<br/>Socialism.<br/>Literature and science.
<br/><br/><label>Dewey Class. No.: </label>575  / ZIE 1959