Spellman, F. R. (2021). Fundamentals of public utilities management (First edition.). CRC Press.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিSpellman, Frank R. Fundamentals of Public Utilities Management. First edition. Boca Raton, FL: CRC Press, 2021.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিSpellman, Frank R. Fundamentals of Public Utilities Management. First edition. CRC Press, 2021.