OBEROI, V. (2017). I CARE MY BOOK OF ENVIRONMENTAL AWARENESS - BOOK 4. CAMBRIDGE UNIVERSITY PRESS.
芝加哥风格引文OBEROI, VIDHI. I CARE MY BOOK OF ENVIRONMENTAL AWARENESS - BOOK 4. DELHI: CAMBRIDGE UNIVERSITY PRESS, 2017.
MLA引文OBEROI, VIDHI. I CARE MY BOOK OF ENVIRONMENTAL AWARENESS - BOOK 4. CAMBRIDGE UNIVERSITY PRESS, 2017.
警告：这些引文格式不一定是100％准确.