Zeylstra, W. G. (1975). Aid or development: The relevance of development aid to problems of developing countries. A.W. Sijthoff.
芝加哥风格引文Zeylstra, Willem Gustaaf. Aid or Development: The Relevance of Development Aid to Problems of Developing Countries. Leyden: A.W. Sijthoff, 1975.
MLA引文Zeylstra, Willem Gustaaf. Aid or Development: The Relevance of Development Aid to Problems of Developing Countries. A.W. Sijthoff, 1975.
警告：这些引文格式不一定是100％准确.