APA-ийн эшлэл(7 дахь хэвлэлт)

BALASUBRAMANIAN, P. (2013). TRIPS IN TIME - A TEXTBOOK FOR ICSE HISTORY AND CIVICS - BOOK 3. CAMBRIDGE UNIVERSITY PRESS.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

BALASUBRAMANIAN, PREMA. TRIPS IN TIME - A TEXTBOOK FOR ICSE HISTORY AND CIVICS - BOOK 3. DELHI: CAMBRIDGE UNIVERSITY PRESS, 2013.

MLA -ийн эшлэл (9 дэх хэвлэлт)

BALASUBRAMANIAN, PREMA. TRIPS IN TIME - A TEXTBOOK FOR ICSE HISTORY AND CIVICS - BOOK 3. CAMBRIDGE UNIVERSITY PRESS, 2013.