APA (7 ম সংস্করণ) উদ্ধৃতি

Piotrowski, R. (1978). Cartels and trusts: Their origin and historical development from the economic and legal aspects. Porcupine Press.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Piotrowski, Roman. Cartels and Trusts: Their Origin and Historical Development from the Economic and Legal Aspects. Philadelphia: Porcupine Press, 1978.

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

Piotrowski, Roman. Cartels and Trusts: Their Origin and Historical Development from the Economic and Legal Aspects. Porcupine Press, 1978.