Daniels, P. W. (1993). Service industries in the world economy. Blackwell.
芝加哥风格引文Daniels, P. W. Service Industries in the World Economy. Oxford, UK: Blackwell, 1993.
MLA引文Daniels, P. W. Service Industries in the World Economy. Blackwell, 1993.
警告：这些引文格式不一定是100％准确.