Lua APA (7ú heag.)

Carruthers, E., & Worthington, M. (2006). Children's mathematics: Making marks, making meaning (Second Edition.). Sage.

Lua i Stíl Chicago (17ú heag.)

Carruthers, Elizabeth, agus Maulfry Worthington. Children's Mathematics: Making Marks, Making Meaning. Second Edition. London ; Thousand Oaks, Calif.: Sage, 2006.

Lua MLA (8ú heag.)

Carruthers, Elizabeth, agus Maulfry Worthington. Children's Mathematics: Making Marks, Making Meaning. Second Edition. Sage, 2006.

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