APA Style
Piaget, J., Inhelder, B. (2010).
Psikologi Anak : The Psychology of the Child .
Yogyakarta:
Pustaka Pelajar.
MLA Style
Piaget, Jean., Inhelder, Barbel.
"Psikologi Anak : The Psychology of the Child".
Yogyakarta:
Pustaka Pelajar,
2010.
Text.