Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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