Smith, Esther L.,  1895- <br/><br/>
Mother and child    The official Hay system book on the pre-natal care of the mother, and the care, feeding and training of children. 

 - Mount Pocono, Pa.,  Hay system publications  [c1947] 
 - 224 p. 
<br/><br/> A new edition of The Hay system of child development, by William H. Hay and Esther L. Smith. 
<br/><br/><label>LCCN: </label>med47001808  
<br/><br/><label>LC Class. No.: </label>RJ61  / .S636 1947 
<br/><br/><label>National Library of Medicine Call No.: </label>WS 113  / S646m 1947