Beckham, S. D. (1978). Identifying and assessing historical cultural resources: Region 6, U.S.F.S. Forest Service, USDA, Pacific Northwest Region.
Style de citation Chicago (17e éd.)Beckham, Stephen Dow. Identifying and Assessing Historical Cultural Resources: Region 6, U.S.F.S. [Portland, Or.]: Forest Service, USDA, Pacific Northwest Region, 1978.
Style de citation MLA (8e éd.)Beckham, Stephen Dow. Identifying and Assessing Historical Cultural Resources: Region 6, U.S.F.S. Forest Service, USDA, Pacific Northwest Region, 1978.
Attention : ces citations peuvent ne pas être correctes à 100%.