Cita APA (7a ed.)

Droppers, G. (1923). Outlines of economic history in the nineteenth century: A textbook for colleges. Ronald.

Cita Chicago Style (17a ed.)

Droppers, Garrett. Outlines of Economic History in the Nineteenth Century: A Textbook for Colleges. New York: Ronald, 1923.

Cita MLA (9a ed.)

Droppers, Garrett. Outlines of Economic History in the Nineteenth Century: A Textbook for Colleges. Ronald, 1923.