Bogue, Donald Joseph, <br/><br/>
Techniques of pregnancy history analysis 
Donald J. Bogue and Elizabeth J. Bogue 
 - University of Chicago : Chicago  Community and Family Study Center  1970 
 - v, 156 p.; 23 cm. 
 - Family Planning Research and Evaluation Manual  n.4 .
<br/><br/> Cover title. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Pregnancy--Data processing<br/>Fertility, Human--Statistics