Lua APA (7ú heag.)

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

Lua i Stíl Chicago (17ú heag.)

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

Lua MLA (9ú heag.)

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

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.