APA

Palmer R. R., Colton J. G., . (1984). A history of the modern world. New York: Knopf.

Chicago

Palmer R R, Colton Joel G, . 1984. A history of the modern world. New York: Knopf.

Harvard

Palmer R. R., Colton J. G., . (1984). A history of the modern world. New York: Knopf.

MLA

Palmer R R, Colton Joel G, . A history of the modern world. New York: Knopf. 1984.