Fatal, N. F. J. (1999). The internet economy: How big is it really? Manila Bulletin.
芝加哥风格引文Fatal, Nestor F. Jr. "The Internet Economy: How Big Is It Really?" Manila Bulletin 1999.
MLA引文Fatal, Nestor F. Jr. "The Internet Economy: How Big Is It Really?" Manila Bulletin, 1999.
警告：这些引文格式不一定是100％准确.