APA (7 ম সংস্করণ) উদ্ধৃতি

Agrahari Ravi.P. (2022). Environmental Ecology,Biodiversity,Climate Change And Disaster Management (2ND.). Mc Grow Hill Education (India).

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Agrahari Ravi.P. Environmental Ecology,Biodiversity,Climate Change And Disaster Management. 2ND. Chennai: Mc Grow Hill Education (India), 2022.

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

Agrahari Ravi.P. Environmental Ecology,Biodiversity,Climate Change And Disaster Management. 2ND. Mc Grow Hill Education (India), 2022.