Lua APA (7ú heag.)

Villegas, B. M. (1971). Economics of an industry. Center for Research and Communication].

Lua i Stíl Chicago (17ú heag.)

Villegas, Bernardo Malvar. Economics of an Industry. [Manila: Center for Research and Communication], 1971.

Lua MLA (9ú heag.)

Villegas, Bernardo Malvar. Economics of an Industry. Center for Research and Communication], 1971.

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