Penggayaan APA

Drummond, Helga. (2009). How to be a successful entrepreneur : spot the opportunity, take a risk and a brilliant business . London: Kogan Page.

Chicago Style

Drummond, Helga. How to be a successful entrepreneur : spot the opportunity, take a risk and a brilliant business. London: Kogan Page, 2009. Buku.

MLA Style

Drummond, Helga. How to be a successful entrepreneur : spot the opportunity, take a risk and a brilliant business. London: Kogan Page, 2009. Buku.

Turabian Style

Drummond, Helga. How to be a successful entrepreneur : spot the opportunity, take a risk and a brilliant business. London: Kogan Page, 2009. Buku.