Here are entered works on present-day calculators as well as on calculators and mechanical computers of pre-1945 vintage. Works on modern electronic computers first developed after 1945 are entered under Computers.
Here are entered works on the use of a personal computer, writing and graphics software, and page layout software to produce printed material for publication.
Desmidiaceae -- North America -- Classification. / https://id.loc.gov/authorities/subjects/sh85037219 https://id.loc.gov/authorities/subjects/sh85092455-781 https://id.loc.gov/authorities/subjects/sh2002012033