The Philippines Madrigal Singers & Veneracion, A. O. (1990). University of the Philippines Madrigal Singers: Volume 2. The Philippines Madrigal Singers.
Chicago-viite (17. p.)The Philippines Madrigal Singers ja Andrea Ofilada Veneracion. University of the Philippines Madrigal Singers: Volume 2. [Quezon City: The Philippines Madrigal Singers, 1990.
MLA-viite (9. p.)The Philippines Madrigal Singers ja Andrea Ofilada Veneracion. University of the Philippines Madrigal Singers: Volume 2. The Philippines Madrigal Singers, 1990.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.