Cita APA (7a ed.)

Griggs, G. B. (1977). The earth and land use planning. Duxbury.

Cita Chicago Style (17a ed.)

Griggs, Gary B. The Earth and Land Use Planning. North Scituate: Duxbury, 1977.

Cita MLA (9a ed.)

Griggs, Gary B. The Earth and Land Use Planning. Duxbury, 1977.

Precaución: Estas citas no son 100% exactas.