APA (7th ed.) Citation

Demetillo, R. D. (1975). The Heart of emptiness is black: A tragedy in verse. University of the Philippine Press.

Chicago Style (17th ed.) Citation

Demetillo, Ricaredo Dipus. The Heart of Emptiness Is Black: A Tragedy in Verse. Quezon City: University of the Philippine Press, 1975.

MLA (9th ed.) Citation

Demetillo, Ricaredo Dipus. The Heart of Emptiness Is Black: A Tragedy in Verse. University of the Philippine Press, 1975.