Fries, C. C. (1954). CUMULATIVE pattern practices: Lessons I-XX from An Intensive course in English. University of Michigan.
Cita Chicago Style (17a ed.)Fries, Charles Carpenter. CUMULATIVE Pattern Practices: Lessons I-XX from An Intensive Course in English. Ann Arbor [EE.UU.]: University of Michigan, 1954.
Cita MLA (8a ed.)Fries, Charles Carpenter. CUMULATIVE Pattern Practices: Lessons I-XX from An Intensive Course in English. University of Michigan, 1954.
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