Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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