APA (7th ed.) Zitazioa

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

Chicago Style (17th ed.) Zitazioa

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

MLA (9th ed.) Zitazioa

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