Citazione Stile APA (7a Edizione)

Primack, M. L., & Willis, J. F. (1980). An economic history of the United States. The Benjamin/Cummings Publishing Company.

Citazione stile Chigago Style (17a edizione)

Primack, Martin L.., e James Frederick Willis. An Economic History of the United States. Menlo Park [etc.]: The Benjamin/Cummings Publishing Company, 1980.

Citatione MLA (9a ed.)

Primack, Martin L.., e James Frederick Willis. An Economic History of the United States. The Benjamin/Cummings Publishing Company, 1980.