APA (7th ed.) Citation

Villegas, B. M. (1984). Managerial economics (Rev. ed.). Sinag-tala.

Chicago Style (17th ed.) Citation

Villegas, Bernardo M. Managerial Economics. Rev. ed. Manila: Sinag-tala, 1984.

MLA (9th ed.) Citation

Villegas, Bernardo M. Managerial Economics. Rev. ed. Sinag-tala, 1984.