APA
Marston S. A., Knox P. L. & Liverman D. M. (2002). World regions in global context. Upper Saddle River, N.J: Prentice Hall.
Chicago
Marston Sallie A, Knox Paul L and Liverman Diana M. 2002. World regions in global context. Upper Saddle River, N.J: Prentice Hall.
Harvard
Marston S. A., Knox P. L. and Liverman D. M. (2002). World regions in global context. Upper Saddle River, N.J: Prentice Hall.
MLA
Marston Sallie A, Knox Paul L and Liverman Diana M. World regions in global context. Upper Saddle River, N.J: Prentice Hall. 2002.