Cita APA (7a ed.)

Combs, P. H. (1926). The Wages of Unskilled Labor in Manufacturing Industries in the United States, 1890-1924. Columbia University.

Cita Chicago Style (17a ed.)

Combs, Philip H. The Wages of Unskilled Labor in Manufacturing Industries in the United States, 1890-1924. New York: Columbia University, 1926.

Cita MLA (8a ed.)

Combs, Philip H. The Wages of Unskilled Labor in Manufacturing Industries in the United States, 1890-1924. Columbia University, 1926.