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LOGARITHMS OF TRIGONOMETRICAL *^ FUNCTIONS
MACHINERY'S YELLOW BACK SERIES
16b
THE MACHINERY PUBLISHING CO.. LTD.,
Regd. Offices: 83-113. Hl S'l'i.'X K" ".\ I \ LONDON WW 1 War Addn-s-: 17. MAKIXK 1' \ K A1 " BRIGHTON
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