Gaya APA

Posamentier, A, S. (2003). Math charmers : tantalizing tidbits for the mind / Alfred S Posamentier . New York: Prometheus.

Gaya MLA

Posamentier, Alfred, S. "Math charmers : tantalizing tidbits for the mind / Alfred S Posamentier". New York: Prometheus, 2003. Buku.