Isard, W., & Cumberland, J. (1960). Regional Economic Pianning. Techniques of Analysis for less developed areas: наукове видання.
Citazione stile Chigago Style (17a edizione)Isard, Walter, e JohnH Cumberland. Regional Economic Pianning. Techniques of Analysis for Less Developed Areas: наукове видання. 1960.
Citatione MLA (9a ed.)Isard, Walter, e JohnH Cumberland. Regional Economic Pianning. Techniques of Analysis for Less Developed Areas: наукове видання. 1960.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.