Vollman, Rudolf F. <br/><br/>
The menstrual cycle / 
By Rudolf F. Vollman. 
 - Philadelphia :  W. B. Saunders,  1977. 
 - xii, 193 p. :  ill. ;  25 cm. 
 - Major problems in obstetrics and gynecology  v. 7. .
<br/><br/>Includes bibliographies and index. 
<br/><br/><label>ISBN: </label>0721690750 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Menstrual cycle--Longitudinal studies.<br/>Menstrual cycle--Statistical methods.<br/>Menstruation.