APA (7th ed.) Citation

Citizens' Energy Project & Simpson, J. (1980). Citizens' energy directory (2nd ed., rev.). Citizens' Energy Project.

Chicago Style (17th ed.) Citation

Citizens' Energy Project and Jan Simpson. Citizens' Energy Directory. 2nd ed., rev. Washington: Citizens' Energy Project, 1980.

MLA (9th ed.) Citation

Citizens' Energy Project and Jan Simpson. Citizens' Energy Directory. 2nd ed., rev. Citizens' Energy Project, 1980.