APA (7th ed.) Citation

Ashton, Hauff, & O'Hara. (1999). PROTECTING watershed areas: Case of the Panama Canal. Food Products Press.

Chicago Style (17th ed.) Citation

Ashton, Hauff, and O'Hara. PROTECTING Watershed Areas: Case of the Panama Canal. New York: Food Products Press, 1999.

MLA (9th ed.) Citation

Ashton, et al. PROTECTING Watershed Areas: Case of the Panama Canal. Food Products Press, 1999.