APA (7th ed.) Citation

Johnson, J. H., & Kaska, H. V. (1965). Fossil algae from Guatemala. Colorado School of Mines.

Chicago Style (17th ed.) Citation

Johnson, J. Harlan, and Harold V. Kaska. Fossil Algae from Guatemala. [Golden]: Colorado School of Mines, 1965.

MLA (9th ed.) Citation

Johnson, J. Harlan, and Harold V. Kaska. Fossil Algae from Guatemala. Colorado School of Mines, 1965.