Cita APA (7a ed.)

Powers, S. M., Davis, M., & Torrence, E. (1998). Assessing the classroom environment of the virtual classroom. [s.n.].

Cita Chicago Style (17a ed.)

Powers, Susan M., Michaeleen Davis, y Eileen Torrence. Assessing the Classroom Environment of the Virtual Classroom. [S.l.]: [s.n.], 1998.

Cita MLA (9a ed.)

Powers, Susan M., et al. Assessing the Classroom Environment of the Virtual Classroom. [s.n.], 1998.