San Antonio, O. d. G. (2007). English for life. Anvil.
芝加哥风格引文San Antonio, Oliva de G. English for Life. Pasig City: Anvil, 2007.
MLA引文San Antonio, Oliva de G. English for Life. Anvil, 2007.
警告：这些引文格式不一定是100％准确.
APA引文
San Antonio, O. d. G. (2007). English for life. Anvil.
芝加哥风格引文San Antonio, Oliva de G. English for Life. Pasig City: Anvil, 2007.
MLA引文San Antonio, Oliva de G. English for Life. Anvil, 2007.