APA (7 ম সংস্করণ) উদ্ধৃতি

Cobb, B. (1956). Critical years at the Yard; the career of Frederick Williamson of the Detective Department and the C.I.D. Faber and Faber.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Cobb, Belton. Critical Years at the Yard; the Career of Frederick Williamson of the Detective Department and the C.I.D. London: Faber and Faber, 1956.

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

Cobb, Belton. Critical Years at the Yard; the Career of Frederick Williamson of the Detective Department and the C.I.D. Faber and Faber, 1956.