Santiago, R. A. P. Factors affecting the levels of income and expenditure in three selected areas, 1974.
芝加哥风格引文Santiago, Roy Alvin P. Factors Affecting the Levels of Income and Expenditure in Three Selected Areas, 1974.
MLA引文Santiago, Roy Alvin P. Factors Affecting the Levels of Income and Expenditure in Three Selected Areas, 1974.
警告：这些引文格式不一定是100％准确.