Villanueva, P. M., Acurantes, D. C., & Aranzaso, R. C. (2003). Writing skills for college (2nd ed.). Katha Publishing.
芝加哥风格引文Villanueva, Perla M., Dolores C. Acurantes, 与 Roberta C. Aranzaso. Writing Skills for College. 2nd ed. Quezon City: Katha Publishing, 2003.
MLA引文Villanueva, Perla M., et al. Writing Skills for College. 2nd ed. Katha Publishing, 2003.
警告：这些引文格式不一定是100％准确.