Cita APA (7th ed.)

Welbourne, M. (2001). Knowledge. Acumen.

Cita Chicago (17th ed.)

Welbourne, Michael. Knowledge. Chesham: Acumen, 2001.

Cita MLA (9th ed.)

Welbourne, Michael. Knowledge. Acumen, 2001.

Atenció: Aquestes cites poden no estar 100% correctes.