Upton, C., & Widdowson, J. D. A. (1996). An atlas of English dialects. Oxford University Press.
Chicagoスタイル(17版)引用形式Upton, Clive, , J. D. A. Widdowson. An Atlas of English Dialects. New York: Oxford University Press, 1996.
MLA(9版)引用形式Upton, Clive, , J. D. A. Widdowson. An Atlas of English Dialects. Oxford University Press, 1996.
警告: この引用は必ずしも正確ではありません.