APA (7th ed.) Citation

Luoma, J. R., & Joyner, K. C. (1990). Air pollution and forest decline: Is there a link? U.S. Dept. of Agriculture, Forest Service.

Chicago Style (17th ed.) Citation

Luoma, Jon R., and Kimberly C. Joyner. Air Pollution and Forest Decline: Is There a Link? [Washington, D.C.?]: U.S. Dept. of Agriculture, Forest Service, 1990.

MLA (9th ed.) Citation

Luoma, Jon R., and Kimberly C. Joyner. Air Pollution and Forest Decline: Is There a Link? U.S. Dept. of Agriculture, Forest Service, 1990.