Joaquin, N. (1977). A question of heroes: Essays in criticism on ten key figures of Philippine history. Ayala Museum, Filipinas Foundation.
芝加哥风格引文Joaquin, Nick. A Question of Heroes: Essays in Criticism on Ten Key Figures of Philippine History. Makati, Metro Manila: Ayala Museum, Filipinas Foundation, 1977.
MLA引文Joaquin, Nick. A Question of Heroes: Essays in Criticism on Ten Key Figures of Philippine History. Ayala Museum, Filipinas Foundation, 1977.
警告：这些引文格式不一定是100％准确.