APA (7e ed.) Bronvermelding

Mitchell, B., & Mitchell, J. E. (1972). The watershed as a resource management unit: A selected bibliography. Council of Planning Librarians.

Chicago (17e ed.) Bronvermelding

Mitchell, Bruce, en Joan Elizabeth Mitchell. The Watershed as a Resource Management Unit: A Selected Bibliography. Monticello, Ill: Council of Planning Librarians, 1972.

MLA (9e ed.) Bronvermelding

Mitchell, Bruce, en Joan Elizabeth Mitchell. The Watershed as a Resource Management Unit: A Selected Bibliography. Council of Planning Librarians, 1972.