Decker, C. L. (1998). Winning with the P & G. 99. Pocket Books.
Chicago Style aipamenaDecker, Charles L. Winning with the P & G. 99. New York: Pocket Books, 1998.
MLA aipamenaDecker, Charles L. Winning with the P & G. 99. Pocket Books, 1998.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.