Citazione Stile APA (7a Edizione)

Pack, J. R. (1978). Urban models: Diffusion and policy application. Regional Science Research Institute.

Citazione stile Chigago Style (17a edizione)

Pack, Janet Rothenberg. Urban Models: Diffusion and Policy Application. Philadelphia, Pa: Regional Science Research Institute, 1978.

Citatione MLA (9a ed.)

Pack, Janet Rothenberg. Urban Models: Diffusion and Policy Application. Regional Science Research Institute, 1978.