Merttens, R., & Vass, J. (1990). Sharing maths cultures: IMPACT: investing maths for parents and children and teachers. The Falmer Press.
Chicago Style (17. basım) AtıfMerttens, Ruth, ve Jeff Vass. Sharing Maths Cultures: IMPACT: Investing Maths for Parents and Children and Teachers. USA: The Falmer Press, 1990.
MLA (8th ed.) AtıfMerttens, Ruth, ve Jeff Vass. Sharing Maths Cultures: IMPACT: Investing Maths for Parents and Children and Teachers. The Falmer Press, 1990.
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