APA استشهاد

Ricketts,Martin. (1994). Economics of business enterprise: Introduction to economic organisation and the theory of the firm (2.). Harvester.

استشهاد بنمط شيكاغو

Ricketts,Martin. Economics of Business Enterprise: Introduction to Economic Organisation and the Theory of the Firm. 2. London: Harvester, 1994.

MLA استشهاد

Ricketts,Martin. Economics of Business Enterprise: Introduction to Economic Organisation and the Theory of the Firm. 2. Harvester, 1994.