APA-referens (7:e uppl.)

Heyne, P. T., & Johnson, T. (1976). Toward economic understanding. Science Research Associates.

Chicago-referens (17:e uppl.)

Heyne, Paul T., och Thomas Johnson. Toward Economic Understanding. Chicago: Science Research Associates, 1976.

MLA-referens (9:e uppl.)

Heyne, Paul T., och Thomas Johnson. Toward Economic Understanding. Science Research Associates, 1976.