Cita APA (7th ed.)

Scott, G. M., Jones, R. J., & Furmanski, L. S. (1999). 21 debated: Issues in world politics. Pearson/Prentice Hall.

Cita Chicago (17th ed.)

Scott, Gregory M., Randall J. Jones, i Louis S. Furmanski. 21 Debated: Issues in World Politics. Upper Saddle River, N.J: Pearson/Prentice Hall, 1999.

Cita MLA (9th ed.)

Scott, Gregory M., et al. 21 Debated: Issues in World Politics. Pearson/Prentice Hall, 1999.