Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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