APA (7th ed.) Citation

O'Brien, R. A., & Conner, R. C. (1991). Forest statistics for land outside national forests in eastern Montana, 1989. Intermountain Research Station.

Chicago Style (17th ed.) Citation

O'Brien, Renee A., and Roger C. Conner. Forest Statistics for Land Outside National Forests in Eastern Montana, 1989. Ogden: Intermountain Research Station, 1991.

MLA (9th ed.) Citation

O'Brien, Renee A., and Roger C. Conner. Forest Statistics for Land Outside National Forests in Eastern Montana, 1989. Intermountain Research Station, 1991.