Gaya APA
Hetherington, E, M. (1979).
Child Psychology: A Contemporary Viewpoint .
London:
McGRAW - HILL INTERNATIONAL BOOK COMPANY.
Gaya MLA
Hetherington, E., Mavis.
"Child Psychology: A Contemporary Viewpoint".
London:
McGRAW - HILL INTERNATIONAL BOOK COMPANY,
1979.
Text.