APA (7th ed.) Citation

Eicher, D. L. (1968). Geologic time. Prentice-Hall.

Chicago Style (17th ed.) Citation

Eicher, Don L. Geologic Time. Englewood Cliffs/N.J: Prentice-Hall, 1968.

MLA (9th ed.) Citation

Eicher, Don L. Geologic Time. Prentice-Hall, 1968.

Warning: These citations may not always be 100% accurate.