Cita APA (7a ed.)

Toynbee, A. J. (1956). The New Opportunity for Historians. University of Minnesota.

Cita Chicago Style (17a ed.)

Toynbee, Arnold Joseph. The New Opportunity for Historians. Minnesota: University of Minnesota, 1956.

Cita MLA (9a ed.)

Toynbee, Arnold Joseph. The New Opportunity for Historians. University of Minnesota, 1956.