Lua APA (7ú heag.)
Barnett, R. A. (1980). Elementary algebra, structure and use (3d ed.). McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)
Barnett, Raymond A. Elementary Algebra, Structure and Use. 3d ed. New York: McGraw-Hill, 1980.
Lua MLA (9ú heag.)
Barnett, Raymond A. Elementary Algebra, Structure and Use. 3d ed. McGraw-Hill, 1980.
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