Petersen, H. C. (1981). Business and government. Harper & Row.
Cita Chicago (17th ed.)Petersen, Harold Craig. Business and Government. New York: Harper & Row, 1981.
Cita MLA (9th ed.)Petersen, Harold Craig. Business and Government. Harper & Row, 1981.
Atenció: Aquestes cites poden no estar 100% correctes.