Gaya APA
Turner, Johanna. (1981).
Cognitive development .
London:
Methuen.
Gaya Chicago
Turner, Johanna.
Cognitive development.
London:
Methuen,
1981.
Text.
Gaya MLA
Turner, Johanna.
Cognitive development.
London:
Methuen,
1981.
Text.
Gaya Turabian
Turner, Johanna.
Cognitive development.
London:
Methuen,
1981.
Print.