APA引文

RIES,TRONF. (1993). POSITIONING. MCGRAW HILL WARNER BOOKS.

芝加哥风格引文

RIES,TRONF. POSITIONING. NEW YORK: MCGRAW HILL WARNER BOOKS, 1993.

MLA引文

RIES,TRONF. POSITIONING. MCGRAW HILL WARNER BOOKS, 1993.

警告：这些引文格式不一定是100％准确.