Gaya APA

Dunn, R, E., Mitchell, L, J. (2015). Panorama a world history : to 1500 . New York: Mc Graw-Hill.

Gaya MLA

Dunn, Ross, E.., Mitchell, Laura, J.. "Panorama a world history : to 1500". New York: Mc Graw-Hill, 2015. Text.