Cita APA (7th ed.)

Ayala Foundation, Inc. (2002). Batangas: Forged in fire. Filipinas Heritage Library.

Cita Chicago (17th ed.)

Ayala Foundation, Inc. Batangas: Forged in Fire. Makati City: Filipinas Heritage Library, 2002.

Cita MLA (9th ed.)

Ayala Foundation, Inc. Batangas: Forged in Fire. Filipinas Heritage Library, 2002.