Hugh Neill; Douglas Quadling. (2002). Pure Mathematics 1 (International) (Cambridge International Examinations). CAMBRIDGE UNIVERSITY PRESS.
Chicago-viite (17. p.)Hugh Neill; Douglas Quadling. Pure Mathematics 1 (International) (Cambridge International Examinations). CAMBRIDGE UNIVERSITY PRESS, 2002.
MLA-viite (9. p.)Hugh Neill; Douglas Quadling. Pure Mathematics 1 (International) (Cambridge International Examinations). CAMBRIDGE UNIVERSITY PRESS, 2002.
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