Balingit, S. L. M., & Bassig, X. B. Beyond scheme: Payment for environmental services in tourism.
芝加哥风格引文Balingit, Sheryl Lou M., 与 Xyza B. Bassig. Beyond Scheme: Payment for Environmental Services in Tourism. 2009.
MLA引文Balingit, Sheryl Lou M., 与 Xyza B. Bassig. Beyond Scheme: Payment for Environmental Services in Tourism.
警告：这些引文格式不一定是100％准确.