APA (7th ed.) Citation

Johnston, V. R. (1998). Sierra Nevada: The naturalist's companion (Rev. ed.). University of California Press.

Chicago Style (17th ed.) Citation

Johnston, Verna R. Sierra Nevada: The Naturalist's Companion. Rev. ed. Berkeley: University of California Press, 1998.

MLA (9th ed.) Citation

Johnston, Verna R. Sierra Nevada: The Naturalist's Companion. Rev. ed. University of California Press, 1998.