APA-ийн эшлэл(7 дахь хэвлэлт)

DUTTA, P. &. R. (2013). PASSAGE OF TIME - A TEXTBOOK FOR ICSE HISTORY & CIVICS CLASS 8. CAMBRIDGE UNIVERSITY PRESS.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

DUTTA, PURNIMA & RAY. PASSAGE OF TIME - A TEXTBOOK FOR ICSE HISTORY & CIVICS CLASS 8. DELHI: CAMBRIDGE UNIVERSITY PRESS, 2013.

MLA -ийн эшлэл (9 дэх хэвлэлт)

DUTTA, PURNIMA & RAY. PASSAGE OF TIME - A TEXTBOOK FOR ICSE HISTORY & CIVICS CLASS 8. CAMBRIDGE UNIVERSITY PRESS, 2013.