Cohn B,Dr. (1939). Tables of Addition and Subtraction Logarithms with Six Decimals (IInd edition 1939.). Scientific Computing Service Limited.
Chicago Edition CitationCohn B,Dr. Tables of Addition and Subtraction Logarithms with Six Decimals. IInd edition 1939. London: Scientific Computing Service Limited, 1939.
Deismireacht MLACohn B,Dr. Tables of Addition and Subtraction Logarithms with Six Decimals. IInd edition 1939. Scientific Computing Service Limited, 1939.
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