Frank, E., & Lee, R. (1966). Potential solar beam irridation on slopes: Tables for 30 ̊to 50 ̊latitude. Rocky Mountain Forest and Range Experiment Station, Forest Servic.
Chicago Style (17th ed.) CitationFrank, Ernest, and Richard Lee. Potential Solar Beam Irridation on Slopes: Tables for 30 ̊to 50 ̊latitude. Fort Collins, Colo: Rocky Mountain Forest and Range Experiment Station, Forest Servic, 1966.
MLA (9th ed.) CitationFrank, Ernest, and Richard Lee. Potential Solar Beam Irridation on Slopes: Tables for 30 ̊to 50 ̊latitude. Rocky Mountain Forest and Range Experiment Station, Forest Servic, 1966.
Warning: These citations may not always be 100% accurate.