Dyfyniad APA

Harbury, C. D. (1986). Descriptive economics: An Introduction to economic theory and the UK economy (7th ed.). Pitman.

Dyfyniad Arddull Chicago

Harbury, C. D. Descriptive Economics: An Introduction to Economic Theory and the UK Economy. 7th ed. London: Pitman, 1986.

Dyfyniad MLA

Harbury, C. D. Descriptive Economics: An Introduction to Economic Theory and the UK Economy. 7th ed. Pitman, 1986.

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