APA Style
PIAGET. PIAGETIAN THEORY AND THE HELPING PROFESSIONS 7TH ANNUAL CONFRENCE VOLUME I. (1976).
Los Angeles:
University Affiliated Program.
MLA Style
PIAGET. PIAGETIAN THEORY AND THE HELPING PROFESSIONS 7TH ANNUAL CONFRENCE VOLUME I.
1.
Los Angeles:
University Affiliated Program,
1976.
Text.