APA (7 ম সংস্করণ) উদ্ধৃতি

Singh, B. D. Environmental management: A geographical study of Sultanpur district. Deep and Deep Pubs. 1992.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Singh, Beena Devi. Environmental Management: A Geographical Study of Sultanpur District. Deep and Deep Pubs. 1992.

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

Singh, Beena Devi. Environmental Management: A Geographical Study of Sultanpur District. Deep and Deep Pubs. 1992.