Cita APA (7th ed.)

Kenneth, J. (1977). The age of uncertainty (ed.). Houghton Mifflin Co..

Cita Chicago (17th ed.)

Kenneth, John. The Age of Uncertainty. ed. Boston: Houghton Mifflin Co., 1977.

Cita MLA (9th ed.)

Kenneth, John. The Age of Uncertainty. ed. Houghton Mifflin Co., 1977.