Παραπομπή APA

Gribbin, J., & White, M. (1992). Stephen Hawking: A life in science.

Παραπομπή Chicago Style

Gribbin, John, και Michael White. Stephen Hawking: A Life in Science. New York, Dutton, 1992.

Παραπομπή MLA

Gribbin, John, και Michael White. Stephen Hawking: A Life in Science. 1992.