Polenske, K. R. (1974). State estimates of technology, 1963. Lexington Books.
芝加哥风格引文Polenske, Karen R. State Estimates of Technology, 1963. Lexington, Mass.: Lexington Books, 1974.
MLA引文Polenske, Karen R. State Estimates of Technology, 1963. Lexington Books, 1974.
警告：这些引文格式不一定是100％准确.