United Nations Environment Programme. (2001). Bangladesh: State of the environment 2001. United Nations Environment Programme.
Chicago Style aipamenaUnited Nations Environment Programme. Bangladesh: State of the Environment 2001. Pathumthani, Thailand: United Nations Environment Programme, 2001.
MLA aipamenaUnited Nations Environment Programme. Bangladesh: State of the Environment 2001. United Nations Environment Programme, 2001.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.