Ives, H. C. (1944). Natural trigonometric functions: To seven decimal places for every ten seconds of arc (2nd ed.). Wiley.
Cita Chicago Style (17a ed.)Ives, Howard Chapin. Natural Trigonometric Functions: To Seven Decimal Places for Every Ten Seconds of Arc. 2nd ed. New York: Wiley, 1944.
Cita MLA (8a ed.)Ives, Howard Chapin. Natural Trigonometric Functions: To Seven Decimal Places for Every Ten Seconds of Arc. 2nd ed. Wiley, 1944.
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