(1980). Manila North Road improvement project (Rosario-Laoag Section): Package I & II ; monthly report, August 1980. Ministry of Public Highways.
芝加哥风格引文Manila North Road Improvement Project (Rosario-Laoag Section): Package I & II ; Monthly Report, August 1980. Manila: Ministry of Public Highways, 1980.
MLA引文Manila North Road Improvement Project (Rosario-Laoag Section): Package I & II ; Monthly Report, August 1980. Ministry of Public Highways, 1980.
警告：这些引文格式不一定是100％准确.