APA-referens (7:e uppl.)

Flowers, T. H. (1976). Introduction to exchange systems. Wiley.

Chicago-referens (17:e uppl.)

Flowers, Thomas Harold. Introduction to Exchange Systems. London: Wiley, 1976.

MLA-referens (9:e uppl.)

Flowers, Thomas Harold. Introduction to Exchange Systems. Wiley, 1976.