TOWNSEND, G., & DALZELL, J. R. (1955). How to estimate. American Technical Society.
芝加哥风格引文TOWNSEND, Gilbert, 与 J. Ralph DALZELL. How to Estimate. Chicago: American Technical Society, 1955.
MLA引文TOWNSEND, Gilbert, 与 J. Ralph DALZELL. How to Estimate. American Technical Society, 1955.
警告：这些引文格式不一定是100％准确.