Cita APA (7th ed.)

Baerwald, T. J., & Fraser, C. (1998). Prentice Hall world geography: Building a global perspective. Prentice Hall.

Cita Chicago (17th ed.)

Baerwald, Thomas J., i Celeste Fraser. Prentice Hall World Geography: Building a Global Perspective. Upper Saddle River, N.J: Prentice Hall, 1998.

Cita MLA (9th ed.)

Baerwald, Thomas J., i Celeste Fraser. Prentice Hall World Geography: Building a Global Perspective. Prentice Hall, 1998.