Goldberg, S., & DuPre, J. C. (2011). Global history and geography. Pearson.
Cita Chicago (17th ed.)Goldberg, Steven, i Judith Clark DuPre. Global History and Geography. Upper Saddle River, N.J: Pearson, 2011.
Cita MLA (9th ed.)Goldberg, Steven, i Judith Clark DuPre. Global History and Geography. Pearson, 2011.
Atenció: Aquestes cites poden no estar 100% correctes.