Description: Indivisible by two :

Main Author:	Segal, Nancy L., 1951-
Format:	Book
Language:	English
Published:	Cambridge, MA : Harvard University Press, 2005.
Subjects:	Twins Twins > Psychology Multiple birth.

Physical Description:	280 p. : ill. ; 22 cm.
Bibliography:	Includes bibliographical references (p. 255-278).
ISBN:	0674019334 (alk. paper)