Clavecilla, W. P. (1991). Philippines by year 2000: Electronics, telecommunications and other factors relevant to the socio-economic development of the Philippines. The Author.
芝加哥风格引文Clavecilla, Wigberto P. Philippines by Year 2000: Electronics, Telecommunications and Other Factors Relevant to the Socio-economic Development of the Philippines. Quezon City: The Author, 1991.
MLA引文Clavecilla, Wigberto P. Philippines by Year 2000: Electronics, Telecommunications and Other Factors Relevant to the Socio-economic Development of the Philippines. The Author, 1991.
警告：这些引文格式不一定是100％准确.