APA (7th ed.) Citation

Sonza, D. P. (1990). Illustrious Ilonggos. s. n.

Chicago Style (17th ed.) Citation

Sonza, Demy P. Illustrious Ilonggos. [s.l: s. n, 1990.

MLA (9th ed.) Citation

Sonza, Demy P. Illustrious Ilonggos. s. n, 1990.

Warning: These citations may not always be 100% accurate.