Gaya APA
Piaget, J., Inhelder, B. (2018).
Psikologi Anak: The Psychology of the Child .
Yogyakarta:
Pustaka Pelajar.
Gaya MLA
Piaget, Jean., Inhelder, Barbel.
"Psikologi Anak: The Psychology of the Child".
Yogyakarta:
Pustaka Pelajar,
2018.
Teks (Text).