Dowker, A. [ca. 2008]. Mathematical difficulties : psychology and intervention. In Educational psychology series [Cd]. San Diego, CA: Academic Press.
ISO-690 (author-date, English)DOWKER, Ann, 2008. Mathematical difficulties : psychology and intervention. San Diego, CA: Academic Press. ISBN 9780123736291.
Modern Language Association 9th editionDowker, A. „Mathematical difficulties : psychology and intervention“. Educational psychology series, cd, Academic Press, 2008.
Mohr Siebeck - Recht (Deutsch - Österreich)Dowker, Ann: Mathematical difficulties : psychology and intervention, San Diego, CA 2008.
Emerald - HarvardDowker, A. (2008), Mathematical difficulties : psychology and intervention, Educational psychology series, Bd. , Academic Press, San Diego, CA.
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