Citazione Stile APA (7a Edizione)

Isard, W., & Smith, T. E. (1969). General theory: Social, political, economic, and regional, with particular reference to decision-making analysis. M.I.T. Press.

Citazione stile Chigago Style (17a edizione)

Isard, Walter, e Tony E. Smith. General Theory: Social, Political, Economic, and Regional, with Particular Reference to Decision-making Analysis. Cambridge, Mass: M.I.T. Press, 1969.

Citatione MLA (9a ed.)

Isard, Walter, e Tony E. Smith. General Theory: Social, Political, Economic, and Regional, with Particular Reference to Decision-making Analysis. M.I.T. Press, 1969.