Crowther, J. (1980). Introductory crosswords: For learners of English as a foreign language. Tokyo: Oxford University Press.
استشهاد بنمط شيكاغوCrowther, Jonathan. Introductory Crosswords: For Learners of English As a Foreign Language. Tokyo: Oxford University Press, 1980.
MLA استشهادCrowther, Jonathan. Introductory Crosswords: For Learners of English As a Foreign Language. Tokyo: Oxford University Press, 1980.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.