Cardoza, E. W. (1975). Computational complexity of the word problem for commutative semigroups.
Chicago Style (17th ed.) CitationCardoza, Edward W. Computational Complexity of the Word Problem for Commutative Semigroups. Cambridge, Massachusetts, 1975.
MLA (9th ed.) CitationCardoza, Edward W. Computational Complexity of the Word Problem for Commutative Semigroups. 1975.
Warning: These citations may not always be 100% accurate.