APA (7e ed.) Bronvermelding

LEEB DONNA; LEEB STEPHEN. (2004). OIL FACTOR: PROTECT YOURSELF ......ENERGY CRISIS. WARNER BOOK.

Chicago (17e ed.) Bronvermelding

LEEB DONNA; LEEB STEPHEN. OIL FACTOR: PROTECT YOURSELF ......ENERGY CRISIS. NEW YORK: WARNER BOOK, 2004.

MLA (9e ed.) Bronvermelding

LEEB DONNA; LEEB STEPHEN. OIL FACTOR: PROTECT YOURSELF ......ENERGY CRISIS. WARNER BOOK, 2004.

Let op: Deze citaties zijn niet altijd 100% accuraat.