Roces, A. R., & Gillis, S. (2010). Sym: The power of struggle. The Crucible Workshop.
Cita Chicago (17th ed.)Roces, Alfredo R., i Sandie Gillis. Sym: The Power of Struggle. Mandaluyong City, Philippines: The Crucible Workshop, 2010.
Cita MLA (9th ed.)Roces, Alfredo R., i Sandie Gillis. Sym: The Power of Struggle. The Crucible Workshop, 2010.
Atenció: Aquestes cites poden no estar 100% correctes.