APA সাইটেশন

Barr, J. (1971). The environmental handbook: Action guide for the U.K. London: A Ballantine Friends of the Earth Book.

শিকাগো স্টাইলে সাইটেশন

Barr, John. The Environmental Handbook: Action Guide for the U.K. London: A Ballantine Friends of the Earth Book, 1971.

এমএলএ সাইটেশন

Barr, John. The Environmental Handbook: Action Guide for the U.K. London: A Ballantine Friends of the Earth Book, 1971.