Gaya APA

Harrison, A, F, &, B, R, M. (1987). The art of thinking: Strategies fo asking questions, making decisions, and solving problems. . New York: New York Berkeley Books.

Gaya MLA

Harrison, Allen, F., &, Bramson,, Robert, M.. "The art of thinking: Strategies fo asking questions, making decisions, and solving problems. ". New York: New York Berkeley Books, 1987. Buku.