Feeney, W. J. (1954). Certain unsolvable problems in the theory of cancellation semi-groups.
Chicago Style (17th ed.) CitationFeeney, Walter J. Certain Unsolvable Problems in the Theory of Cancellation Semi-groups. Washington, D.C. : Catholic University of Americ a Press, 1954.
Cita MLAFeeney, Walter J. Certain Unsolvable Problems in the Theory of Cancellation Semi-groups. 1954.
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