Gaya APA

Smith, R., F., I, U, J. (NULL). Solid Geometry . New: New York: Harcourt, Brace & World; 1957.

Gaya MLA

Smith, Rolland., F., I., Urlich,, James. "Solid Geometry". New: New York: Harcourt, Brace & World; 1957, NULL. Text.