Lua APA (7ú heag.)

Mason, J., Graham, A., & Johnston-Wilder, S. (2005). Developing thinking in algebra. Open University in association with Paul Chapman Pub. ; Sage Publications.

Lua i Stíl Chicago (17ú heag.)

Mason, John, Alan Graham, agus Sue Johnston-Wilder. Developing Thinking in Algebra. London : Thousand Oaks, Calif.: Open University in association with Paul Chapman Pub. ; Sage Publications, 2005.

Lua MLA (8ú heag.)

Mason, John, et al. Developing Thinking in Algebra. Open University in association with Paul Chapman Pub. ; Sage Publications, 2005.

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