Penggayaan APA

PIAGET, Jean. (1941). The Child's conception of number . London: Routledge & Kegan Paul.

Chicago Style

PIAGET, Jean. The Child's conception of number. London: Routledge & Kegan Paul, 1941. Buku.

MLA Style

PIAGET, Jean. The Child's conception of number. London: Routledge & Kegan Paul, 1941. Buku.

Turabian Style

PIAGET, Jean. The Child's conception of number. London: Routledge & Kegan Paul, 1941. Buku.