APA引文

Mansfield, E. (1968). Industrial research and technological innovation: An econometric analysis. New York: W.W. Norton & Company.

Trích dẫn kiểu Chicago

Mansfield, Edwin. Industrial Research and Technological Innovation: An Econometric Analysis. New York: W.W. Norton & Company, 1968.

MLA引文

Mansfield, Edwin. Industrial Research and Technological Innovation: An Econometric Analysis. New York: W.W. Norton & Company, 1968.

警告：這些引文格式不一定是100％准確.