Παραπομπή APA

Baumol, W. J. (2000). Economics: Principles and policy (6th ed. 8th ed.). Dryden.

Παραπομπή Chicago Style

Baumol, William J. Economics: Principles and Policy. 6th ed. 8th ed. U S A: Dryden, 2000.

Παραπομπή MLA

Baumol, William J. Economics: Principles and Policy. 6th ed. 8th ed. Dryden, 2000.