Style de citation APA (7e éd.)

Hardwick, P., Khan, B., & Langmead, J. (1999). An introduction to modern economics (5th ed.). Peason education Limited.

Style de citation Chicago (17e éd.)

Hardwick, Philip, Bahadur Khan, et John Langmead. An Introduction to Modern Economics. 5th ed. Harlow: Peason education Limited, 1999.

Style de citation MLA (9e éd.)

Hardwick, Philip, et al. An Introduction to Modern Economics. 5th ed. Peason education Limited, 1999.