APA-viite (7. p.)

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

Chicago-viite (17. p.)

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

MLA-viite (9. p.)

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