APA (7 वां संस्करण) प्रशस्ति पत्र

Ayala Foundation, Inc, Ortigas, M. A. C., & Sta. Maria, F. P. (2012). Ayala Foundation at 50: A legacy of faith in the Filipino. Ayala Foundation, Inc.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Ayala Foundation, Inc, Ma. Antonia C. Ortigas, और Felice P. Sta. Maria. Ayala Foundation at 50: A Legacy of Faith in the Filipino. Makati City: Ayala Foundation, Inc, 2012.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Ayala Foundation, Inc, et al. Ayala Foundation at 50: A Legacy of Faith in the Filipino. Ayala Foundation, Inc, 2012.