(1993). Philippine transportation and communications directory, 1992-1993. Kilter Enterprises.
芝加哥风格引文Philippine Transportation and Communications Directory, 1992-1993. Mandaluyong, Metro Manila: Kilter Enterprises, 1993.
MLA引文Philippine Transportation and Communications Directory, 1992-1993. Kilter Enterprises, 1993.
警告：这些引文格式不一定是100％准确.