APA aipamena

McClelland, D. C. (1969). Motivating economic achievement. New York: Free Press.

Chicago Style aipamena

McClelland, David C. Motivating Economic Achievement. New York: Free Press, 1969.

MLA aipamena

McClelland, David C. Motivating Economic Achievement. New York: Free Press, 1969.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.