MARTIN, G. C. (1962). A tutor text practical mathematics. Doubleday and Company.
Chicago-čujuhus (17. p.)MARTIN, Grace C. A Tutor Text Practical Mathematics. New York: Doubleday and Company, 1962.
MLA-čujuhus (9. p.)MARTIN, Grace C. A Tutor Text Practical Mathematics. Doubleday and Company, 1962.
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