Villanueva, A. A. (1995). Income taxation simplified. Central Professional Books.
芝加哥风格引文Villanueva, Angelina A. Income Taxation Simplified. Quezon City: Central Professional Books, 1995.
MLA引文Villanueva, Angelina A. Income Taxation Simplified. Central Professional Books, 1995.
警告：这些引文格式不一定是100％准确.