APA-viite (7. p.)

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

Chicago-viite (17. p.)

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

MLA-viite (9. p.)

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