APA (7th ed.) Citation

Proctor, P. D., Peterson, P. R., & Kackstaetter, U. (1989). Mineral-rock handbook: Rapid-easy mineral-rock determination. Paulmar Publications.

Chicago Style (17th ed.) Citation

Proctor, Paul Dean, P. R. Peterson, and Uwe Kackstaetter. Mineral-rock Handbook: Rapid-easy Mineral-rock Determination. Sandy, Utah: Paulmar Publications, 1989.

MLA (9th ed.) Citation

Proctor, Paul Dean, et al. Mineral-rock Handbook: Rapid-easy Mineral-rock Determination. Paulmar Publications, 1989.