Sunga, R., & Lopa, M. A. (1990). CPAR assessment of the second year of Republic Act 6657. Congress for People's Agrarian Reform (CPAR).
芝加哥风格引文Sunga, Ricardo, 与 Margarita A. Lopa. CPAR Assessment of the Second Year of Republic Act 6657. [Manila]: Congress for People's Agrarian Reform (CPAR), 1990.
MLA引文Sunga, Ricardo, 与 Margarita A. Lopa. CPAR Assessment of the Second Year of Republic Act 6657. Congress for People's Agrarian Reform (CPAR), 1990.
警告：这些引文格式不一定是100％准确.