Garey, M. R., & Johnson, D. S. (1979). Computers and intractability: A guide to the theory of NP-completeness. W. H. Freeman.
芝加哥风格引文Garey, Michael R., 与 David S. Johnson. Computers and Intractability: A Guide to the Theory of NP-completeness. New York ; Houndmills ; San Francisco: W. H. Freeman, 1979.
MLA引文Garey, Michael R., 与 David S. Johnson. Computers and Intractability: A Guide to the Theory of NP-completeness. W. H. Freeman, 1979.
警告：这些引文格式不一定是100％准确.