Tennent, J. (2002). Guide to business modelling. The Economist Books.
Chicago Style aipamenaTennent, John. Guide to Business Modelling. London: The Economist Books, 2002.
MLA aipamenaTennent, John. Guide to Business Modelling. The Economist Books, 2002.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.