Gaya APA

Nourse, H, O., Swanson, C, P. (1968). Regional economics a study in the economic structure, stability. and ì growth of regions . New York: .

Gaya MLA

Nourse, Hugh, O., Swanson, Carl, P.. "Regional economics a study in the economic structure, stability. and ì growth of regions". New York: , 1968. Text.