Cita APA (7th ed.)

Gatenby, E. V. (1962). A direct method english course, Book V. Longmans.

Cita Chicago (17th ed.)

Gatenby, E. V. A Direct Method English Course, Book V. London: Longmans, 1962.

Cita MLA (9th ed.)

Gatenby, E. V. A Direct Method English Course, Book V. Longmans, 1962.