Cita APA (7a ed.)

Casti, J. L. (1986). Canonical models and the law of requisite variety. International Institute for Applied Systems Analysis.

Cita Chicago Style (17a ed.)

Casti, John L.. Canonical Models and the Law of Requisite Variety. Laxenburg: International Institute for Applied Systems Analysis, 1986.

Cita MLA (9a ed.)

Casti, John L.. Canonical Models and the Law of Requisite Variety. International Institute for Applied Systems Analysis, 1986.