APA (7 ম সংস্করণ) উদ্ধৃতি

KRISHNAMOORTHY BALA. (2008). ENVIRONMENTAL MANAGEMENT: TEXT AND CASES 2 ND ED (2ND ED.). PRENTICE-HALL OF INDIA PRIVATE LIMITED.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

KRISHNAMOORTHY BALA. ENVIRONMENTAL MANAGEMENT: TEXT AND CASES 2 ND ED. 2ND ED. NEW DELHI: PRENTICE-HALL OF INDIA PRIVATE LIMITED, 2008.

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

KRISHNAMOORTHY BALA. ENVIRONMENTAL MANAGEMENT: TEXT AND CASES 2 ND ED. 2ND ED. PRENTICE-HALL OF INDIA PRIVATE LIMITED, 2008.