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-Zitierstil (17. Ausg.)Frank, Ernest, und 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-Zitierstil (9. Ausg.)Frank, Ernest, und Richard Lee. Potential Solar Beam Irridation on Slopes: Tables for 30 ̊to 50 ̊latitude. Rocky Mountain Forest and Range Experiment Station, Forest Servic, 1966.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.