Citazione APA

Findley, C. V. 1., & Rothney, J. A. M. (1998). Twentieth-century world (4th edition.). Boston: Houghton Mifflin.

Stile di citazione Chicago

Findley, Carter V. 1941-, e John Alexander Murray Rothney. Twentieth-century World. 4th edition. Boston: Houghton Mifflin, 1998.

Citazione MLA

Findley, Carter V. 1941-, e John Alexander Murray Rothney. Twentieth-century World. 4th edition. Boston: Houghton Mifflin, 1998.

Attenzione: Queste citazioni potrebbero non essere precise al 100%.