Cita APA (7a ed.)

Eiseley, L. C. (1960). The firmament of time. Atheneum.

Cita Chicago Style (17a ed.)

Eiseley, Loren C. The Firmament of Time. New York: Atheneum, 1960.

Cita MLA (9a ed.)

Eiseley, Loren C. The Firmament of Time. Atheneum, 1960.