Pride, W. M. (1991). Business (3rd.ed.). Houghton Mifflin.
Cita Chicago (17th ed.)Pride, William M. Business. 3rd.ed. Dallas: Houghton Mifflin, 1991.
Cita MLA (9th ed.)Pride, William M. Business. 3rd.ed. Houghton Mifflin, 1991.
Atenció: Aquestes cites poden no estar 100% correctes.