Bryan, Elizabeth M., <br/><br/>
Are they identical? :  zygosity determination for twins, triplets and more / 
[by Elizabeth Bryan, Faith Hallet]. 
 - London :  Multiple Births Foundation,  1997. 
 - [8] p. :  ill. ;  21 cm. 
<br/><br/> Cover title. 
<br/><br/><label>ISBN: </label> No price (pbk) 
<br/><br/><label>Nat. Bib. No.: </label>GB9858184  bnb 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Multiple birth.<br/>Twins.
<br/><br/><label>Dewey Class. No.: </label>618.25