Lederer, E. M. (2004). Linear algebra exam file. Kaplan AEC Education.
Lua i Stíl Chicago (17ú heag.)Lederer, Eric M. Linear Algebra Exam File. Chicago, Ill: Kaplan AEC Education, 2004.
Lua MLA (9ú heag.)Lederer, Eric M. Linear Algebra Exam File. Kaplan AEC Education, 2004.
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