Gaya APA

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

Gaya MLA

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