Παραπομπή APA

Kingma, B. R. (2005). economics of information: A guide to economic and cost-benefit analysis for information professionals (2nd ed.). Libraries Unlimited.

Παραπομπή Chicago Style

Kingma, Bruce R. Economics of Information: A Guide to Economic and Cost-benefit Analysis for Information Professionals. 2nd ed. Chennai: Libraries Unlimited, 2005.

Παραπομπή MLA

Kingma, Bruce R. Economics of Information: A Guide to Economic and Cost-benefit Analysis for Information Professionals. 2nd ed. Libraries Unlimited, 2005.