Billington, K. (1988). People, politics & public power. Washington Public Utility Districts' Association.
Cita Chicago Style (17a ed.)Billington, Ken. People, Politics & Public Power. Seattle, Wash.: Washington Public Utility Districts' Association, 1988.
Cita MLA (8a ed.)Billington, Ken. People, Politics & Public Power. Washington Public Utility Districts' Association, 1988.
Precaución: Estas citas no son 100% exactas.