Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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