Παραπομπή σε μορφή APA (7η εκδ.)

Barton Perry, R. (1950). General theory of value: Its meaning and basic principles construed in terms of interest. Harvard Univ. Press.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Barton Perry, Ralph. General Theory of Value: Its Meaning and Basic Principles Construed in Terms of Interest. Cambridge, Mass.: Harvard Univ. Press, 1950.

Παραπομπή σε μορφή MLA (8th εκδ.)

Barton Perry, Ralph. General Theory of Value: Its Meaning and Basic Principles Construed in Terms of Interest. Harvard Univ. Press, 1950.