APA-ийн эшлэл(7 дахь хэвлэлт)

Marian Cox. (2014). Cambridge Checkpoint English Coursebook 9 (Cambridge International Examinations). CAMBRIDGE UNIVERSITY PRESS.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Marian Cox. Cambridge Checkpoint English Coursebook 9 (Cambridge International Examinations). CAMBRIDGE UNIVERSITY PRESS, 2014.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Marian Cox. Cambridge Checkpoint English Coursebook 9 (Cambridge International Examinations). CAMBRIDGE UNIVERSITY PRESS, 2014.