Cita APA (7a ed.)

Poulson, B. W. (1981). Economic history of the United States. MacMillan [etc.].

Cita Chicago Style (17a ed.)

Poulson, Barry W. Economic History of the United States. New York [etc.]: MacMillan [etc.], 1981.

Cita MLA (9a ed.)

Poulson, Barry W. Economic History of the United States. MacMillan [etc.], 1981.