Cita APA (7a ed.)

Mangold, W. (1969). New modern english: III An elementary course. Mangold.

Cita Chicago Style (17a ed.)

Mangold, Walter. New Modern English: III An Elementary Course. Madrid: Mangold, 1969.

Cita MLA (9a ed.)

Mangold, Walter. New Modern English: III An Elementary Course. Mangold, 1969.