Ashlock, R. B. (2002). Error patterns in computation: Using error patterns to improve instruction (8th ed.). Merrill Prentice Hall.
Chicago Style (17th ed.) CitationAshlock, Robert B. Error Patterns in Computation: Using Error Patterns to Improve Instruction. 8th ed. Upper Saddle River, N.J: Merrill Prentice Hall, 2002.
MLA (9th ed.) CitationAshlock, Robert B. Error Patterns in Computation: Using Error Patterns to Improve Instruction. 8th ed. Merrill Prentice Hall, 2002.
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