Cita APA (7a ed.)

Strong, B., & Rivera, P. R. (1976). America: In space and time. Addison-Wesley Publishing.

Cita Chicago Style (17a ed.)

Strong, Bryan, y Paul R. Rivera. America: In Space and Time. Menlo Park, Calif. [u.a.]: Addison-Wesley Publishing, 1976.

Cita MLA (9a ed.)

Strong, Bryan, y Paul R. Rivera. America: In Space and Time. Addison-Wesley Publishing, 1976.