Παραπομπή σε μορφή APA (7η εκδ.)

Clark, C. M. A. (1992). Economic theory and natural philosophy: The search for the natural laws of the economy. Edward Elgar.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Clark, Charles Michael Andres. Economic Theory and Natural Philosophy: The Search for the Natural Laws of the Economy. Aldershot: Edward Elgar, 1992.

Παραπομπή σε μορφή MLA (9th εκδ.)

Clark, Charles Michael Andres. Economic Theory and Natural Philosophy: The Search for the Natural Laws of the Economy. Edward Elgar, 1992.