Crystal, D. (2008). By hook or by crook: A journey in search of English. Overlook Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रCrystal, David. By Hook or by Crook: A Journey in Search of English. Woodstock, N.Y.: Overlook Press, 2008.
एमएलए (8वां संस्करण) प्रशस्ति पत्रCrystal, David. By Hook or by Crook: A Journey in Search of English. Overlook Press, 2008.
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