Mary Jones; Diane Fellowes-Freeman; David Sang. (2012). Cambridge Checkpoint Science Workbook 8 (Cambridge International Examinations) (Workbook.). CAMBRIDGE UNIVERSITY PRESS.
Citace podle Chicago (17th ed.)Mary Jones; Diane Fellowes-Freeman; David Sang. Cambridge Checkpoint Science Workbook 8 (Cambridge International Examinations). Workbook. CAMBRIDGE UNIVERSITY PRESS, 2012.
Citace podle MLA (9th ed.)Mary Jones; Diane Fellowes-Freeman; David Sang. Cambridge Checkpoint Science Workbook 8 (Cambridge International Examinations). Workbook. CAMBRIDGE UNIVERSITY PRESS, 2012.
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