Polunin, N. (1980). এৎড়ঃিয রিঃযড়ঁঃ বপড়ফরংধংঃবৎং?: Proceedings of the Second International Conference on Environmental Future (1977). Halsted Press.
Čikaški stil citiranja (17. izdanje)Polunin, Nicholas. এৎড়ঃিয রিঃযড়ঁঃ বপড়ফরংধংঃবৎং?: Proceedings of the Second International Conference on Environmental Future (1977). New York: Halsted Press, 1980.
MLA način citiranja (9. izdanje)Polunin, Nicholas. এৎড়ঃিয রিঃযড়ঁঃ বপড়ফরংধংঃবৎং?: Proceedings of the Second International Conference on Environmental Future (1977). Halsted Press, 1980.
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