Citação norma APA

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

Citação norma Chicago

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

Citação norma MLA

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

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.