Dyfyniad APA

Garey, M. R., & Johnson, D. S. (1979). Computers and intractability: A guide to the theory of NP-completeness. W. H. Freeman.

Dyfyniad Arddull Chicago

Garey, Michael R., and David S. Johnson. Computers and Intractability: A Guide to the Theory of NP-completeness. New York ; Houndmills ; San Francisco: W. H. Freeman, 1979.

Dyfyniad MLA

Garey, Michael R., and David S. Johnson. Computers and Intractability: A Guide to the Theory of NP-completeness. W. H. Freeman, 1979.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.