Ong, E. G. (1991). Winning in real estate, Philippine style. Worldlink Realty & Management Corporation.
芝加哥风格引文Ong, Eduardo Gutierrez. Winning in Real Estate, Philippine Style. [S.l.]: Worldlink Realty & Management Corporation, 1991.
MLA引文Ong, Eduardo Gutierrez. Winning in Real Estate, Philippine Style. Worldlink Realty & Management Corporation, 1991.
警告：这些引文格式不一定是100％准确.