McClelland, D. C. (1969). Motivating economic achievement. New York: Free Press.
Trích dẫn kiểu ChicagoMcClelland, David C. Motivating Economic Achievement. New York: Free Press, 1969.
MLA引文McClelland, David C. Motivating Economic Achievement. New York: Free Press, 1969.
警告：這些引文格式不一定是100％准確.