Speroff, Leon  Glass, Robert H.   Kase , Nathan G.  <br/><br/>
Clinical GynacologyEndocrinology and Infertility 

 - 4th ed. 
 - Baltimore :  Williams and Wilkins ,  1989 . 
 - 667 p 
<br/><br/><label>ISBN: </label>0683078976 
<br/><br/><label>LC Class. No.: </label>WP 505 SPE 1989