Feeney, W. J. (1954). Certain unsolvable problems in the theory of cancellation semi-groups.
Style de citation Chicago (17e éd.)Feeney, Walter J. Certain Unsolvable Problems in the Theory of Cancellation Semi-groups. Washington, D.C. : Catholic University of Americ a Press, 1954.
Style de citation MLA (8e éd.)Feeney, Walter J. Certain Unsolvable Problems in the Theory of Cancellation Semi-groups. 1954.
Attention : ces citations peuvent ne pas être correctes à 100%.