Cita APA (7a ed.)

River, W. M. (1968). Teaching Foreign - Language Skills. Univ. of Chicago pr..

Cita Chicago Style (17a ed.)

River, Wilga M. Teaching Foreign - Language Skills. Chicago: Univ. of Chicago pr., 1968.

Cita MLA (9a ed.)

River, Wilga M. Teaching Foreign - Language Skills. Univ. of Chicago pr., 1968.