Yap, J. T. (1990). The Philippines: Recent performance, prospects for 1990-91 and policy development issues. Philippine Institute for Development Studies.
芝加哥风格引文Yap, Josef T. The Philippines: Recent Performance, Prospects for 1990-91 and Policy Development Issues. Makati, Metro Manila: Philippine Institute for Development Studies, 1990.
MLA引文Yap, Josef T. The Philippines: Recent Performance, Prospects for 1990-91 and Policy Development Issues. Philippine Institute for Development Studies, 1990.
警告：这些引文格式不一定是100％准确.