Παραπομπή APA

Riddell, T., & Stamos, S. (1979). Economics: A tool for understanding society. Addison-Wesley.

Παραπομπή Chicago Style

Riddell, Tom, και Steve Stamos. Economics: A Tool for Understanding Society. London: Addison-Wesley, 1979.

Παραπομπή MLA

Riddell, Tom, και Steve Stamos. Economics: A Tool for Understanding Society. Addison-Wesley, 1979.