Bryan, Elizabeth. <br/><br/>
Twins, triplets and more :  their nature, development and care / 
Elizabeth Bryan. 
 - London :  Penguin Books,  c1992. 
 - 138 p. 
<br/><br/> Includes bibliographical references, glossary, and index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Twins--Psychology.<br/>Triplets--Psychology.