APA (7th ed.) Citation

Campbell, R. K., & Sugano, A. I. (1987). Seed zones and breeding zones for Sugar Pine in southwestern Oregon. U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station.

Chicago Style (17th ed.) Citation

Campbell, Robert Kenneth, and Albert I. Sugano. Seed Zones and Breeding Zones for Sugar Pine in Southwestern Oregon. Protland, Or.: U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, 1987.

MLA (9th ed.) Citation

Campbell, Robert Kenneth, and Albert I. Sugano. Seed Zones and Breeding Zones for Sugar Pine in Southwestern Oregon. U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, 1987.