JOHNSON, R. E., FOERSTER, P. A., & JOHNSON, C. G. (1977). Algebra: The language of mathematics book 2. Addison-wesley.
Chicago-čujuhus (17. p.)JOHNSON, Richard E., Paul A. FOERSTER, juo Cheryl G. JOHNSON. Algebra: The Language of Mathematics Book 2. California: Addison-wesley, 1977.
MLA-čujuhus (9. p.)JOHNSON, Richard E., et al. Algebra: The Language of Mathematics Book 2. Addison-wesley, 1977.
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