John W. Santrock 
Life-Span Development. Ed 12 
 - 12th Ed 
 - Singapore  Mcgraw Hill International Education  2009 
 - 639p 
John W. Santrock: Life-Span Development. Ed 12.  (12th Ed)  Singapore.  Mcgraw Hill International Education, 2009. 0-07-128083-9--(155SAN)   
ENGLISH 
0-07-128083-9 
155  / SAN