(1971). Guided composition in english language teaching (s.e.). Longman.
Cita Chicago Style (17a ed.)Guided Composition in English Language Teaching. s.e. Longman, 1971.
Cita MLA (8a ed.)Guided Composition in English Language Teaching. s.e. Longman, 1971.
Precaución: Estas citas no son 100% exactas.