Fuentevilla, J. D. (2001). The eighty-twenty cluster: Not strategy. U.P. in Mindanao.
芝加哥风格引文Fuentevilla, Jessie D. The Eighty-twenty Cluster: Not Strategy. Davao City: U.P. in Mindanao, 2001.
MLA引文Fuentevilla, Jessie D. The Eighty-twenty Cluster: Not Strategy. U.P. in Mindanao, 2001.
警告：这些引文格式不一定是100％准确.