APA (7e ed.) Bronvermelding

Palmer, A. (1974). Age of optimism (Revised and expanded edition.). Newsweek Books.

Chicago (17e ed.) Bronvermelding

Palmer, Alan. Age of Optimism. Revised and expanded edition. New York: Newsweek Books, 1974.

MLA (9e ed.) Bronvermelding

Palmer, Alan. Age of Optimism. Revised and expanded edition. Newsweek Books, 1974.