Gaya APA
PIAGET, JEAN. (1952).
CHILD'S CONCEPTION OF NUMBER, THE .
NEW YORK:
W.W. NORTON & COMPANY.
Gaya Chicago
PIAGET, JEAN.
CHILD'S CONCEPTION OF NUMBER, THE.
NEW YORK:
W.W. NORTON & COMPANY,
1952.
Text.
Gaya MLA
PIAGET, JEAN.
CHILD'S CONCEPTION OF NUMBER, THE.
NEW YORK:
W.W. NORTON & COMPANY,
1952.
Text.
Gaya Turabian
PIAGET, JEAN.
CHILD'S CONCEPTION OF NUMBER, THE.
NEW YORK:
W.W. NORTON & COMPANY,
1952.
Print.