Berg, S. V. (1989). Natural monopoly regulation principles and practice. Cambridge University Press.
Čikaški stil citiranja (17. izdanje)Berg, Sanford V. Natural Monopoly Regulation Principles and Practice. Cambridge University Press, 1989.
MLA način citiranja (8. izdanje)Berg, Sanford V. Natural Monopoly Regulation Principles and Practice. Cambridge University Press, 1989.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.