Welford, Heather <br/><br/>
The illustrated dictionary of pregnancy and birth / 
Heather Welford 
 - London  Allen & Unwin  1986 
 - 136p.  ill.  25cm. 
<br/><br/><label>ISBN: </label>0046120386 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Obstetrics<br/>Pregnancy--duration