Sheffield, A. D. (1929). Command of sentence-patterns: An English grammar on new principles. Scott, Foresman and Company.
Citace podle Chicago (17th ed.)Sheffield, Alfred Dwight. Command of Sentence-patterns: An English Grammar on New Principles. Chicago: Scott, Foresman and Company, 1929.
Citace podle MLA (9th ed.)Sheffield, Alfred Dwight. Command of Sentence-patterns: An English Grammar on New Principles. Scott, Foresman and Company, 1929.
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