Cita APA (7a ed.)

Villegas, B. M. (1983). Strategies for crisis. Center for Research and Communication.

Cita Chicago Style (17a ed.)

Villegas, Bernardo M. Strategies for Crisis. [Pasig, Metro Manila]: Center for Research and Communication, 1983.

Cita MLA (9a ed.)

Villegas, Bernardo M. Strategies for Crisis. Center for Research and Communication, 1983.