APA (7th ed.) Citation

Villegas, B. M. (1999). Managerial economics: Text and case studies (3rd ed.). Sinag-Tala.

Chicago Style (17th ed.) Citation

Villegas, Bernardo M. Managerial Economics: Text and Case Studies. 3rd ed. Manila: Sinag-Tala, 1999.

MLA (9th ed.) Citation

Villegas, Bernardo M. Managerial Economics: Text and Case Studies. 3rd ed. Sinag-Tala, 1999.