Cita APA (7a ed.)

Krapp, G. P. (1925). The english languaje in America. The Century Co..

Cita Chicago Style (17a ed.)

Krapp, George Philip. The English Languaje in America. New York: The Century Co., 1925.

Cita MLA (9a ed.)

Krapp, George Philip. The English Languaje in America. The Century Co., 1925.