Cita APA (7a ed.)

Palmer, H. E. (1965). English practice books: Elementary oral exercises: book 1. Longmans, Green and Co. LTD. Ballantyne Press Spottiswoode, Ballantyne & Co. Ltd.

Cita Chicago Style (17a ed.)

Palmer, Harold E. English Practice Books: Elementary Oral Exercises: Book 1. Londres, Inglaterra: Longmans, Green and Co. LTD. Ballantyne Press Spottiswoode, Ballantyne & Co. Ltd, 1965.

Cita MLA (9a ed.)

Palmer, Harold E. English Practice Books: Elementary Oral Exercises: Book 1. Longmans, Green and Co. LTD. Ballantyne Press Spottiswoode, Ballantyne & Co. Ltd, 1965.