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[Trigonometry, etc. (Logarithmic and Trigonometric Tables. Prepared under the direction of E.R. Hedrick.)]
- "[Trigonometry, etc. (Logarithmic and Trigonometric Tables. Prepared under the direction of E.R. Hedrick.)]"@en
- "Trigonometry, etc. (Logarithmic and Trigonometric Tables. Prepared under the direction of E.R. Hedrick.)"@en
- "Trigonometry"@en
- "Trigonometry"