APA-viite (7. p.)
Ryan, J., & Williams, J. (2007). Children's mathematics 4-15: Learning from errors and misconceptions. McGraw-Hill/Open University Press.
Chicago-viite (17. p.)
Ryan, Julie, ja Julian Williams. Children's Mathematics 4-15: Learning from Errors and Misconceptions. Maidenhead: McGraw-Hill/Open University Press, 2007.
MLA-viite (9. p.)
Ryan, Julie, ja Julian Williams. Children's Mathematics 4-15: Learning from Errors and Misconceptions. McGraw-Hill/Open University Press, 2007.
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