Espinosa, J. P. (1997). Canadian developed ice-making technology. Manila Chronicle.
芝加哥风格引文Espinosa, Jesus P. "Canadian Developed Ice-making Technology." Manila Chronicle 1997.
MLA引文Espinosa, Jesus P. "Canadian Developed Ice-making Technology." Manila Chronicle, 1997.
警告：这些引文格式不一定是100％准确.