APA (7e ed.) Bronvermelding

Ayers, R. M., & Collinge, R. A. (2005). Microeconomics: Explore & apply (Enhanced ed.). Pearson/Prentice Hall.

Chicago (17e ed.) Bronvermelding

Ayers, Ronald M., en Robert A. Collinge. Microeconomics: Explore & Apply. Enhanced ed. Upper Saddle River, N.J: Pearson/Prentice Hall, 2005.

MLA (9e ed.) Bronvermelding

Ayers, Ronald M., en Robert A. Collinge. Microeconomics: Explore & Apply. Enhanced ed. Pearson/Prentice Hall, 2005.