Citazione Stile APA (7a Edizione)

Flawn, P. T. (1970). Environmental geology: Conservation, land-use planning, and resource management. Harper & Row.

Citazione stile Chigago Style (17a edizione)

Flawn, Peter Tyrell. Environmental Geology: Conservation, Land-use Planning, and Resource Management. New York: Harper & Row, 1970.

Citatione MLA (9a ed.)

Flawn, Peter Tyrell. Environmental Geology: Conservation, Land-use Planning, and Resource Management. Harper & Row, 1970.