Gatenby, E. (1966). English as a foreign language: Advice to non-English teachers (9th impression.). Longmans.
Cita Chicago Style (17a ed.)Gatenby, E.V. English as a Foreign Language: Advice to Non-English Teachers. 9th impression. London: Longmans, 1966.
Cita MLA (8a ed.)Gatenby, E.V. English as a Foreign Language: Advice to Non-English Teachers. 9th impression. Longmans, 1966.
Precaución: Estas citas no son 100% exactas.