APA (7 ম সংস্করণ) উদ্ধৃতি

Trudgill, S. T. (1990). Barriers to a better environment: What stops us solving environmental problems? Belhaven Press.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Trudgill, Stephen T. Barriers to a Better Environment: What Stops Us Solving Environmental Problems? London: Belhaven Press, 1990.

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

Trudgill, Stephen T. Barriers to a Better Environment: What Stops Us Solving Environmental Problems? Belhaven Press, 1990.