APA

Unger I., . (1964). The greenback era: a social and political history of American finance, 1865-1879. Princeton, N.J: Princeton University Press.

Chicago

Unger Irwin, . 1964. The greenback era: a social and political history of American finance, 1865-1879. Princeton, N.J: Princeton University Press.

Harvard

Unger I., . (1964). The greenback era: a social and political history of American finance, 1865-1879. Princeton, N.J: Princeton University Press.

MLA

Unger Irwin, . The greenback era: a social and political history of American finance, 1865-1879. Princeton, N.J: Princeton University Press. 1964.