Citazione Stile APA (7a Edizione)

Zamora, E. A. (2016). Value chain analysis: A brief review. Cesar E.A. Virata School of Business, University of the Philippines.

Citazione stile Chigago Style (17a edizione)

Zamora, Elvira A. Value Chain Analysis: A Brief Review. Quezon City: Cesar E.A. Virata School of Business, University of the Philippines, 2016.

Citatione MLA (9a ed.)

Zamora, Elvira A. Value Chain Analysis: A Brief Review. Cesar E.A. Virata School of Business, University of the Philippines, 2016.