Citazione Stile APA (7a Edizione)

(1972). Ayala Corporation annual report to management for the fiscal year ended. s.n.

Citazione stile Chigago Style (17a edizione)

Ayala Corporation Annual Report to Management for the Fiscal Year Ended. s.l: s.n, 1972.

Citatione MLA (9a ed.)

Ayala Corporation Annual Report to Management for the Fiscal Year Ended. s.n, 1972.