Παραπομπή σε μορφή APA (7η εκδ.)

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

Παραπομπή σε μορφή Chicago (17η εκδ.)

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

Παραπομπή σε μορφή MLA (9th εκδ.)

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