Brezina, D. W. (1974). Congress in action: The environmental education act. The Free Press.
Cita Chicago (17th ed.)Brezina, Dennis W. Congress in Action: The Environmental Education Act. The Free Press, 1974.
Cita MLA (9th ed.)Brezina, Dennis W. Congress in Action: The Environmental Education Act. The Free Press, 1974.
Atenció: Aquestes cites poden no estar 100% correctes.