Tumbocon, M. J. (1991). On smoking and vitamin C / Mauro Jr. Tumbocon. Manila Times.
芝加哥风格引文Tumbocon, Mauro Jr. "On Smoking and Vitamin C / Mauro Jr. Tumbocon." Manila Times 1991.
MLA引文Tumbocon, Mauro Jr. "On Smoking and Vitamin C / Mauro Jr. Tumbocon." Manila Times, 1991.
警告：这些引文格式不一定是100％准确.