APA (7. basım) Alıntı

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

Chicago Style (17. basım) Atıf

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

MLA (9th ed.) Atıf

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