Bullock, R. H. (2006). The Norton field guide to writing. New York: W.W. Norton & Co..
Trích dẫn kiểu ChicagoBullock, Richard H. The Norton Field Guide to Writing. New York: W.W. Norton & Co., 2006.
Deismireacht MLABullock, Richard H. The Norton Field Guide to Writing. New York: W.W. Norton & Co., 2006.
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