APA (7e ed.) Bronvermelding

Isard, W., & Cumberland, J. (1960). Regional Economic Pianning. Techniques of Analysis for less developed areas: наукове видання.

Chicago (17e ed.) Bronvermelding

Isard, Walter, en JohnH Cumberland. Regional Economic Pianning. Techniques of Analysis for Less Developed Areas: наукове видання. 1960.

MLA (9e ed.) Bronvermelding

Isard, Walter, en JohnH Cumberland. Regional Economic Pianning. Techniques of Analysis for Less Developed Areas: наукове видання. 1960.

Let op: Deze citaties zijn niet altijd 100% accuraat.