Hill, A. C., & Jacobson, J. S. (1970). Recognition of air pollution injury to vegetation: A pictorial atlas. Air Pollution Control Association.
Chicago Style (17th ed.) CitationHill, A. Clyde, and Jay S. Jacobson. Recognition of Air Pollution Injury to Vegetation: A Pictorial Atlas. Pittsburgh, Pa: Air Pollution Control Association, 1970.
MLA (9th ed.) CitationHill, A. Clyde, and Jay S. Jacobson. Recognition of Air Pollution Injury to Vegetation: A Pictorial Atlas. Air Pollution Control Association, 1970.
Warning: These citations may not always be 100% accurate.