Citazione Stile APA (7a Edizione)

Swatridge, L. A. (1978). Selected studies in world geography (Revised ed.). McGraw-Hill.

Citazione stile Chigago Style (17a edizione)

Swatridge, Leonard A. Selected Studies in World Geography. Revised ed. Toronto [u.a.]: McGraw-Hill, 1978.

Citatione MLA (9a ed.)

Swatridge, Leonard A. Selected Studies in World Geography. Revised ed. McGraw-Hill, 1978.