Citazione Stile APA (7a Edizione)

GUNNARSSON, J. (1977). Production Systems and hierarchies of centres: The relationship between spatial and economic structures. Martinus Nijhoff.

Citazione stile Chigago Style (17a edizione)

GUNNARSSON, Jan. Production Systems and Hierarchies of Centres: The Relationship Between Spatial and Economic Structures. Leiden: Martinus Nijhoff, 1977.

Citatione MLA (9a ed.)

GUNNARSSON, Jan. Production Systems and Hierarchies of Centres: The Relationship Between Spatial and Economic Structures. Martinus Nijhoff, 1977.