Gaya APA
Kohler, Richard. (2008).
Jean Piaget .
London:
Bloomsbury.
Gaya Chicago
Kohler, Richard.
Jean Piaget.
London:
Bloomsbury,
2008.
Text.
Gaya MLA
Kohler, Richard.
Jean Piaget.
London:
Bloomsbury,
2008.
Text.
Gaya Turabian
Kohler, Richard.
Jean Piaget.
London:
Bloomsbury,
2008.
Print.