Citazione Stile APA (7a Edizione)

Villegas, B. M. (2004). Economics for the consumer (Sixth edition.). Sinag-Tala Publishers, Inc.

Citazione stile Chigago Style (17a edizione)

Villegas, Bernardo M. Economics for the Consumer. Sixth edition. Manila: Sinag-Tala Publishers, Inc, 2004.

Citatione MLA (9a ed.)

Villegas, Bernardo M. Economics for the Consumer. Sixth edition. Sinag-Tala Publishers, Inc, 2004.