APA (7 ম সংস্করণ) উদ্ধৃতি

SULLIVAN, W. G. (1977). Fundamentals Of Forecasting William G. Sullivan And Wayne Claycombe. Reston Publishing Company.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

SULLIVAN, William G. Fundamentals Of Forecasting William G. Sullivan And Wayne Claycombe. Reston Publishing Company, 1977.

M.L.A (8 ম সংস্করণ) উদ্ধৃতি

SULLIVAN, William G. Fundamentals Of Forecasting William G. Sullivan And Wayne Claycombe. Reston Publishing Company, 1977.