Style de citation APA (7e éd.)

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

Style de citation Chicago (17e éd.)

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

Style de citation MLA (9e éd.)

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