Skelton, J. E. (1971). An introduction to the BASIC language. Holt, Rinehart and Winston.
Lua i Stíl Chicago (17ú heag.)Skelton, John E. An Introduction to the BASIC Language. New York: Holt, Rinehart and Winston, 1971.
Lua MLA (8ú heag.)Skelton, John E. An Introduction to the BASIC Language. Holt, Rinehart and Winston, 1971.
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