Burton, D. M. (1965). An introduction to abstract mathematical systems. Addison-Wesley Publishing Company, Inc.
Lua i Stíl Chicago (17ú heag.)Burton, David M. An Introduction to Abstract Mathematical Systems. Reading, Mass: Addison-Wesley Publishing Company, Inc, 1965.
Lua MLA (9ú heag.)Burton, David M. An Introduction to Abstract Mathematical Systems. Addison-Wesley Publishing Company, Inc, 1965.
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