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শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিThe International Statistical Institute. Bulletin of The International Statistical Institute: Proceedings of the 48th Session = Bulletin De L'Institut International De Statistique : Actes De La 48eme Session. 1 st. ed. Cairo: The International Statistical Institute, 1991.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিThe International Statistical Institute. Bulletin of The International Statistical Institute: Proceedings of the 48th Session = Bulletin De L'Institut International De Statistique : Actes De La 48eme Session. 1 st. ed. The International Statistical Institute, 1991.