YOSL GUY. (1997). LEARNING NET WAVE 4.1. PHI.
Cita Chicago (17th ed.)YOSL GUY. LEARNING NET WAVE 4.1. PHI, 1997.
Cita MLA (9th ed.)YOSL GUY. LEARNING NET WAVE 4.1. PHI, 1997.
Atenció: Aquestes cites poden no estar 100% correctes.
Cita APA (7th ed.)