Cita APA (7th ed.)

Holdgate, M. W., & Fuchs, V. S. (1977). Forces of nature. Holt, Rinehart and Winston.

Cita Chicago (17th ed.)

Holdgate, Martin W., i Vivian Sir Fuchs. Forces of Nature. New York: Holt, Rinehart and Winston, 1977.

Cita MLA (9th ed.)

Holdgate, Martin W., i Vivian Sir Fuchs. Forces of Nature. Holt, Rinehart and Winston, 1977.