Stork, F. C., & Widdowson, J. D. A. (1974). Learning about linguistics : an introductory workbook / (by) F.C. Stork, J.D.A. Widdowson: An introductory workbook. Hutchinson.
Chicago Style (17th ed.) CitationStork, Francis Colin, and J. D. A. Widdowson. Learning About Linguistics : An Introductory Workbook / (by) F.C. Stork, J.D.A. Widdowson: An Introductory Workbook. London: Hutchinson, 1974.
MLA (9th ed.) CitationStork, Francis Colin, and J. D. A. Widdowson. Learning About Linguistics : An Introductory Workbook / (by) F.C. Stork, J.D.A. Widdowson: An Introductory Workbook. Hutchinson, 1974.
Warning: These citations may not always be 100% accurate.