TY  - BOOK
AU  - SIGELMAN, CAROL K.
AU  - RIDER, ELIZABETH A.
TI  - Life-span human development
SN  - 13: 978-0-495-50618-8.
PY  - 2009///
CY  - USA : 
PB  - Wadsworth Cengage Learning, 
KW  - Developmental psychology-Textbooks
N1  - Includes bibliographical references and index
ER  -