APA Edition Citation

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

Chicago Edition Citation

Eicher, D. L. Geologic Time / by D.L. Eicher. Prentice-Hall, 1968.

MLA Edition Citation

Eicher, D. L. Geologic Time / by D.L. Eicher. Prentice-Hall, 1968.

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