|
3
|
|
Calculators -- Great Britain -- History -- 19th century. / https://id.loc.gov/authorities/subjects/sh85018798 https://id.loc.gov/authorities/names/n79023147-781 https://id.loc.gov/authorities/subjects/sh2002006167 : Swade, Doron.
|
2002
|
1
|
|
4
|
|
Calculators -- Handbooks, manuals, etc. / https://id.loc.gov/authorities/subjects/sh85018798 https://id.loc.gov/authorities/subjects/sh99001300 : Burroughs Corporation.
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1910
|
1
|
|
6
|
|
Here are entered works on persons capable of executing rapid mental mathematical calculations.
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1
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