LEEB DONNA; LEEB STEPHEN. (2004). OIL FACTOR: PROTECT YOURSELF ......ENERGY CRISIS. WARNER BOOK.
芝加哥风格引文LEEB DONNA; LEEB STEPHEN. OIL FACTOR: PROTECT YOURSELF ......ENERGY CRISIS. NEW YORK: WARNER BOOK, 2004.
MLA引文LEEB DONNA; LEEB STEPHEN. OIL FACTOR: PROTECT YOURSELF ......ENERGY CRISIS. WARNER BOOK, 2004.
警告：这些引文格式不一定是100％准确.