Inderjeet Kaur Sethi & M.S Sethi. (1991). Understanding our environment. Commonwealth publishers.
Chicago Edition CitationInderjeet Kaur Sethi and M.S Sethi. Understanding Our Environment. Commonwealth publishers, 1991.
MLA Edition CitationInderjeet Kaur Sethi and M.S Sethi. Understanding Our Environment. Commonwealth publishers, 1991.
Warning: These citations may not always be 100% accurate.