Enkin, Murray. <br/><br/>
A Guide to effective care in pregnancy and childbirth / 
Murray Enkin, Marc J. N. C. Keirse, Iain Chalmers. 
 - 1st  ed. 
 - Oxford :  O. U. P.,  1989. 
 - 376  p. 
<br/><br/><label>ISBN: </label>0192619179 : 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Prenatal care.<br/>Labor (obstetrics)