Gaya APA

O'Toole, J., Natalina, N. (2003). Leadership A to Z : A guide for the appropriately ambitios (Panduan berambisi secara positif) . Jakarta: Erlangga.

Gaya MLA

O'Toole, James., Natalina, Neneng. "Leadership A to Z : A guide for the appropriately ambitios (Panduan berambisi secara positif)". Jakarta: Erlangga, 2003. Text.