Citazione Stile APA (7a Edizione)

HAGERSTRAND, T. (1973). Innovation diffusion as a spatial process. The university of Chicago.

Citazione stile Chigago Style (17a edizione)

HAGERSTRAND, Torsten. Innovation Diffusion as a Spatial Process. London: The university of Chicago, 1973.

Citatione MLA (9a ed.)

HAGERSTRAND, Torsten. Innovation Diffusion as a Spatial Process. The university of Chicago, 1973.