APA (7e ed.) Bronvermelding

Bennis Warren & Thomas Robert. (2003). Geeks & Geezers: How Era, Values and Defining Moments shape Leaders. Magna Publishing Co.,LTD.

Chicago (17e ed.) Bronvermelding

Bennis Warren en Thomas Robert. Geeks & Geezers: How Era, Values and Defining Moments Shape Leaders. Mumbai, india: Magna Publishing Co.,LTD, 2003.

MLA (9e ed.) Bronvermelding

Bennis Warren en Thomas Robert. Geeks & Geezers: How Era, Values and Defining Moments Shape Leaders. Magna Publishing Co.,LTD, 2003.