Hunter, H. S. J. A., & Todhunter, I. (1889). Key to Todhunter's Integral calculus. Macmillan.
Lua i Stíl Chicago (17ú heag.)Hunter, Harry St. John Arnele, agus I. Todhunter. Key to Todhunter's Integral Calculus. London ; New York: Macmillan, 1889.
Lua MLA (8ú heag.)Hunter, Harry St. John Arnele, agus I. Todhunter. Key to Todhunter's Integral Calculus. Macmillan, 1889.
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