Cita APA (7a ed.)

Villanueva, E. (1991). Consciousnes. Ridgeview Publishing Company.

Cita Chicago Style (17a ed.)

Villanueva, Enrique. Consciousnes. California: Ridgeview Publishing Company, 1991.

Cita MLA (9a ed.)

Villanueva, Enrique. Consciousnes. Ridgeview Publishing Company, 1991.