Não informado. (1972). General Technical Report RM. Rocky Mountain Forest and Range Experiment Station.
Cita Chicago Style (17a ed.)Não informado. General Technical Report RM. Fort Collins, Colo: Rocky Mountain Forest and Range Experiment Station, 1972.
Cita MLA (8a ed.)Não informado. General Technical Report RM. Rocky Mountain Forest and Range Experiment Station, 1972.
Precaución: Estas citas no son 100% exactas.