Sidneys, S. Chipman <br/><br/>
Research methodology and needs in perinatal studies 

 - Springfield : USA  1963 
 - 309 p. ;  23 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Methodology
<br/><br/><label>National Library of Medicine Call No.: </label>WS420  / .C751r 1963 9