Kagan, Jerome.
Galen's prophecy: temperament in human nature /
by Jerome Kagan with the collaboration of Nancy Snidman, Doreen Arcus, J. Steven Reznick 
. - New York : BasicBooks,  1994 
. - xxiv, 376 p.  ill.  24 cm. 
<br/>К.: Бібліогр. : c. 301-361, Index 
<br/><label>  ISBN: </label>0-465-08405-2