Proceedings of the Consultative Meeting on the Environment (1990 : Makati, Philippines). (1990). Proceedings of the Consultative Meeting on the Environment, Makati, 13-14 February 1990. [s.n.].
芝加哥风格引文Proceedings of the Consultative Meeting on the Environment (1990 : Makati, Philippines). Proceedings of the Consultative Meeting on the Environment, Makati, 13-14 February 1990. Makati: [s.n.], 1990.
MLA引文Proceedings of the Consultative Meeting on the Environment (1990 : Makati, Philippines). Proceedings of the Consultative Meeting on the Environment, Makati, 13-14 February 1990. [s.n.], 1990.
警告：这些引文格式不一定是100％准确.