Covar, P. R. The Masagana/Margate system of planting rice: A study of an agricultural innovation. Community Development Research Council, University of the Philippines.
芝加哥风格引文Covar, Prospero R. The Masagana/Margate System of Planting Rice: A Study of an Agricultural Innovation. [Quezon City]: Community Development Research Council, University of the Philippines.
MLA引文Covar, Prospero R. The Masagana/Margate System of Planting Rice: A Study of an Agricultural Innovation. Community Development Research Council, University of the Philippines.
警告：这些引文格式不一定是100％准确.