APA-referens (7:e uppl.)

Hardwick, P., & Khan, B. (1994). An introduction to modern economics (4th.ed.). Longman.

Chicago-referens (17:e uppl.)

Hardwick, Philip, och Bahadur Khan. An Introduction to Modern Economics. 4th.ed. London: Longman, 1994.

MLA-referens (9:e uppl.)

Hardwick, Philip, och Bahadur Khan. An Introduction to Modern Economics. 4th.ed. Longman, 1994.