Cita APA

Wilson, H. J., & Clack, J. (1997). Economics. [Ohio]: Wilson; Clark.

Chicago Style Citation

Wilson, Holton J., i J.R Clack. Economics. [Ohio]: Wilson; Clark, 1997.

Cita MLA

Wilson, Holton J., i J.R Clack. Economics. [Ohio]: Wilson; Clark, 1997.

Atenció: Aquestes cites poden no estar 100% correctes.