Cummings, R., Jr. (1972). Contribution of three recent studies to improving the information base on which to plan the rice sector in Repelita II.
芝加哥风格引文Cummings, Ralph, Jr. Contribution of Three Recent Studies to Improving the Information Base on Which to Plan the Rice Sector in Repelita II. [n.p.], 1972.
MLA引文Cummings, Ralph, Jr. Contribution of Three Recent Studies to Improving the Information Base on Which to Plan the Rice Sector in Repelita II. 1972.
警告：这些引文格式不一定是100％准确.