Cita APA (7th ed.)

Abad, P., Defeo, R. D., & Brown, I. F. (2004). Obsession. [s.n.].

Cita Chicago (17th ed.)

Abad, Pacita, Ruben D.F Defeo, i Ian Findlay Brown. Obsession. [Singapore: [s.n.], 2004.

Cita MLA (9th ed.)

Abad, Pacita, et al. Obsession. [s.n.], 2004.