Mittwoch, Ursula. <br/><br/>
Sex chromosomes / 
Ursula Mittwoch 
 - New York :  Academic Press,  1967. 
 - ix, 306 p. :  illus. ;  23 cm. 
<br/><br/>Includes bibliographies and index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sex chromosomes.
<br/><br/><label>Dewey Class. No.: </label>599.936  / MIS 1967