JAIN. R.K. (2012). AROUND THE WORLD A TEXTBOOK OF GEOGRAPHY WITH A FOCUS ON ENVIRONMENTAL EDUCATION- 7. RATNA SAGAR.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)JAIN. R.K. AROUND THE WORLD A TEXTBOOK OF GEOGRAPHY WITH A FOCUS ON ENVIRONMENTAL EDUCATION- 7. RATNA SAGAR, 2012.
MLA -ийн эшлэл (9 дэх хэвлэлт)JAIN. R.K. AROUND THE WORLD A TEXTBOOK OF GEOGRAPHY WITH A FOCUS ON ENVIRONMENTAL EDUCATION- 7. RATNA SAGAR, 2012.
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