Longenecker, J. G. (1987). Small-business management. South-Western.
Cita Chicago (17th ed.)Longenecker, Justin G. Small-business Management. South-Western, 1987.
Cita MLA (9th ed.)Longenecker, Justin G. Small-business Management. South-Western, 1987.
Atenció: Aquestes cites poden no estar 100% correctes.