Cita APA (7th ed.)

Isard, W., & Smith, C. (1990). Location analysis and general theory: Economic, political, regional, and dynamic. Macmillan Academic and Professional.

Cita Chicago (17th ed.)

Isard, Walter, i Charles Smith. Location Analysis and General Theory: Economic, Political, Regional, and Dynamic. Basingstoke: Macmillan Academic and Professional, 1990.

Cita MLA (9th ed.)

Isard, Walter, i Charles Smith. Location Analysis and General Theory: Economic, Political, Regional, and Dynamic. Macmillan Academic and Professional, 1990.