Cita APA (7a ed.)

Boak, A. E. R. (1963). The history of our world. Houghton Mifflin.

Cita Chicago Style (17a ed.)

Boak, Arthur Edward Romilly. The History of Our World. Boston: Houghton Mifflin, 1963.

Cita MLA (9a ed.)

Boak, Arthur Edward Romilly. The History of Our World. Houghton Mifflin, 1963.