Cita APA (7a ed.)

Nellis, J. G., & Parker, D. (1992). The Essence of business economics. Prentice-Hall.

Cita Chicago Style (17a ed.)

Nellis, J. G., y David Parker. The Essence of Business Economics. New York [N.Y.] [etc.]: Prentice-Hall, 1992.

Cita MLA (9a ed.)

Nellis, J. G., y David Parker. The Essence of Business Economics. Prentice-Hall, 1992.