APA (7th ed.) Citation

French, R. R., & Rooney, L. F. (1969). Gypsum resources of Indiana. State of Indiana, Dept. of Natural Resources.

Chicago Style (17th ed.) Citation

French, Robert R., and Lawrence Frederick Rooney. Gypsum Resources of Indiana. Bloomington: State of Indiana, Dept. of Natural Resources, 1969.

MLA (9th ed.) Citation

French, Robert R., and Lawrence Frederick Rooney. Gypsum Resources of Indiana. State of Indiana, Dept. of Natural Resources, 1969.