Smith, G. W. (1973). Engineering economy: Analysis of capital expenditures (2nd ed.). Iowa State University Press.
芝加哥风格引文Smith, Gerald W. Engineering Economy: Analysis of Capital Expenditures. 2nd ed. Ames: Iowa State University Press, 1973.
MLA引文Smith, Gerald W. Engineering Economy: Analysis of Capital Expenditures. 2nd ed. Iowa State University Press, 1973.
警告：这些引文格式不一定是100％准确.