Cohen, D. I. A. (1978). Basic Techniques of Combinatorial Theory. New York: John Wiley and Sons.
Trích dẫn kiểu ChicagoCohen, Daniel I. A. Basic Techniques of Combinatorial Theory. New York: John Wiley and Sons, 1978.
MLA CitationCohen, Daniel I. A. Basic Techniques of Combinatorial Theory. New York: John Wiley and Sons, 1978.
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