Bell, W. (1996). Foundations of futures studies: Human science for a new era. Transaction Publishers.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিBell, Wendell. Foundations of Futures Studies: Human Science for a New Era. New Brunswick, NJ: Transaction Publishers, 1996.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিBell, Wendell. Foundations of Futures Studies: Human Science for a New Era. Transaction Publishers, 1996.