Cita APA

Boyes,William, & Melvin, M. (2003). Principles of economics (NA.). Cengage Learning.

Citación estilo Chicago

Boyes,William, and Michael Melvin. Principles of Economics. NA. Australia: Cengage Learning, 2003.

Cita MLA

Boyes,William, and Michael Melvin. Principles of Economics. NA. Cengage Learning, 2003.

Warning: These citations may not always be 100% accurate.