Aspillera, P. S. (1968). The evils of regionalism. Philippine Collegian.
芝加哥风格引文Aspillera, Paraluman S. "The Evils of Regionalism." Philippine Collegian 1968.
MLA引文Aspillera, Paraluman S. "The Evils of Regionalism." Philippine Collegian, 1968.
警告：这些引文格式不一定是100％准确.