APA (7th ed.) Citation

Witkind, I. J., Boyles, J. M., & Patterson, P. E. (1979). Generalized slope map of the Big Fork-Avon environmental study area, Flathead, Lake, Missoula, and Powell Counties, Montana. The Survey.

Chicago Style (17th ed.) Citation

Witkind, Irving J., J. Michael Boyles, and Penny E. Patterson. Generalized Slope Map of the Big Fork-Avon Environmental Study Area, Flathead, Lake, Missoula, and Powell Counties, Montana. Reston, Va.: The Survey, 1979.

MLA (9th ed.) Citation

Witkind, Irving J., et al. Generalized Slope Map of the Big Fork-Avon Environmental Study Area, Flathead, Lake, Missoula, and Powell Counties, Montana. The Survey, 1979.