Piotrowski, R. (1978). Cartels and trusts: Their origin and historical development from the economic and legal aspects. Porcupine Press.
芝加哥风格引文Piotrowski, Roman. Cartels and Trusts: Their Origin and Historical Development from the Economic and Legal Aspects. Philadelphia: Porcupine Press, 1978.
MLA引文Piotrowski, Roman. Cartels and Trusts: Their Origin and Historical Development from the Economic and Legal Aspects. Porcupine Press, 1978.
警告：这些引文格式不一定是100％准确.