Cita APA (7a ed.)

Boak, A. E. R. (1946). World history. Houghton Mifflin company.

Cita Chicago Style (17a ed.)

Boak, Arthur E. R. World History. [New York, etc.]: Houghton Mifflin company, 1946.

Cita MLA (9a ed.)

Boak, Arthur E. R. World History. Houghton Mifflin company, 1946.