APA način citiranja (7. izdanje)

Friend, G., & Zehle, S. (2004). Guide to business planning. Economist in association with Profile Books.

Čikaški stil citiranja (17. izdanje)

Friend, Graham, i Stefan Zehle. Guide to Business Planning. London: Economist in association with Profile Books, 2004.

MLA način citiranja (9. izdanje)

Friend, Graham, i Stefan Zehle. Guide to Business Planning. Economist in association with Profile Books, 2004.