Sager, Ruth <br/><br/>
Cell heredity / 
by Ruth Sager and Francis J. Ryan 
 - New York :  Wiley,  1961 
 - 417 p. :  ill. ;  24 cm. 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cytogenetics