APA (7th ed.) Zitazioa

Isard, W. (1998). Methods of interregional and regional analysis. Ashgate.

Chicago Style (17th ed.) Zitazioa

Isard, Walter. Methods of Interregional and Regional Analysis. Aldershot: Ashgate, 1998.

MLA (9th ed.) Zitazioa

Isard, Walter. Methods of Interregional and Regional Analysis. Ashgate, 1998.