Gaya APA

Smart, T, L., Kownslar, A, O. (1977). People and Our World: A Study Of World History . London: Holt, Rinehart, and Winston.

Gaya MLA

Smart, Terry, L.., Kownslar, Allan, O.. "People and Our World: A Study Of World History". London: Holt, Rinehart, and Winston, 1977. Text.