Cita APA (7th ed.)

Epstein, F. J., & Fantle Shimberg, E. (1994). Gifts of Time. Berkley Books.

Cita Chicago (17th ed.)

Epstein, Fred J., i Elaine Fantle Shimberg. Gifts of Time. New York: Berkley Books, 1994.

Cita MLA (9th ed.)

Epstein, Fred J., i Elaine Fantle Shimberg. Gifts of Time. Berkley Books, 1994.