Beadle, J. D. (1972). Glossary of contemporary engineering. Macmillan.
Lua i Stíl Chicago (17ú heag.)Beadle, John David. Glossary of Contemporary Engineering. London: Macmillan, 1972.
Lua MLA (8ú heag.)Beadle, John David. Glossary of Contemporary Engineering. Macmillan, 1972.
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