Cita APA (7th ed.)

Management information series. pt.1- 19-. s.n.

Cita Chicago (17th ed.)

Management Information Series. Pt.1- 19-. Boston: s.n.

Cita MLA (9th ed.)

Management Information Series. Pt.1- 19-. s.n.

Atenció: Aquestes cites poden no estar 100% correctes.