APA (7 ম সংস্করণ) উদ্ধৃতি

STILWELL, J. (1975). Workbook to accompany the fourth edition of an introduction to positive economics. E.L.B.S., Weidenfeld and Nicolson.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

STILWELL, J.A. Workbook to Accompany the Fourth Edition of an Introduction to Positive Economics. London: E.L.B.S., Weidenfeld and Nicolson, 1975.

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

STILWELL, J.A. Workbook to Accompany the Fourth Edition of an Introduction to Positive Economics. E.L.B.S., Weidenfeld and Nicolson, 1975.