Gaya APA

Smith, R, R., F, I, U, J. (1956). Plane geometry . New York: New York: Harcourt, Brace & World; 1956.

Gaya MLA

Smith, Rolland, R., F, I., Ulrich,, James. "Plane geometry". New York: New York: Harcourt, Brace & World; 1956, 1956. Text.