APA (7th ed.) Citation

Orr, R. T., & Orr, D. B. (1979). Mushrooms of Western North America. University of California Press.

Chicago Style (17th ed.) Citation

Orr, Robert T., and Dorothy B. Orr. Mushrooms of Western North America. Berkeley: University of California Press, 1979.

MLA (9th ed.) Citation

Orr, Robert T., and Dorothy B. Orr. Mushrooms of Western North America. University of California Press, 1979.