Cita APA (7th ed.)

Lang, S., & Murrow, G. (1988). Geometry: A high school course (2a. ed.). Springer-Verlag.

Cita Chicago (17th ed.)

Lang, Serge, i Gene Murrow. Geometry: A High School Course. 2a. ed. Nueva York: Springer-Verlag, 1988.

Cita MLA (9th ed.)

Lang, Serge, i Gene Murrow. Geometry: A High School Course. 2a. ed. Springer-Verlag, 1988.