TY  - BOOK
AU  - Ladd, Gary W
TI  - Children's peer relations and social competence : a century of progress
SN  - 9780300106435
SN  - 200500237
U1  - 155.418 LAD 
PY  - 2005///
CY  - New Haven
PB  - Yale University Press
KW  - Friendship in children
KW  - Interpersonal relations in children
N1  - Includes bibliographical references and index
ER  -