Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.