Cita APA (7a ed.)
Alexander, L. G. (1974). Question and Answer.: Graded Oral Comprehension Execises. London Group Limited.
Cita Chicago Style (17a ed.)
Alexander, Louis George. Question and Answer.: Graded Oral Comprehension Execises. London: London Group Limited, 1974.
Cita MLA (9a ed.)
Alexander, Louis George. Question and Answer.: Graded Oral Comprehension Execises. London Group Limited, 1974.
Precaución: Estas citas no son 100% exactas.