APA (7 ম সংস্করণ) উদ্ধৃতি

JAIN. R.K. (2012). AROUND THE WORLD A TEXTBOOK OF GEOGRAPHY WITH A FOCUS ON ENVIRONMENTAL EDUCATION- 6. RATNA SAGAR.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

JAIN. R.K. AROUND THE WORLD A TEXTBOOK OF GEOGRAPHY WITH A FOCUS ON ENVIRONMENTAL EDUCATION- 6. RATNA SAGAR, 2012.

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

JAIN. R.K. AROUND THE WORLD A TEXTBOOK OF GEOGRAPHY WITH A FOCUS ON ENVIRONMENTAL EDUCATION- 6. RATNA SAGAR, 2012.