Chrystal, G. (1952). Algebra: An elementary text-book for the higher classes of secondary schools and for colleges (6a. ed.). Chelsea Publishing Company.
Citace podle Chicago (17th ed.)Chrystal, G. Algebra: An Elementary Text-book for the Higher Classes of Secondary Schools and for Colleges. 6a. ed. Nueva York: Chelsea Publishing Company, 1952.
Citace podle MLA (9th ed.)Chrystal, G. Algebra: An Elementary Text-book for the Higher Classes of Secondary Schools and for Colleges. 6a. ed. Chelsea Publishing Company, 1952.
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