Gaya APA

Bertsch, G, K. et al (1982). Comparing Political Systems: Powr and Policy in Three Worlds (3rd.Ed). New York: Macillan Publisher.

Gaya MLA

Bertsch, Gary, K.. et al. "Comparing Political Systems: Powr and Policy in Three Worlds". 3rd.Ed New York: Macillan Publisher, 1982. .