(1993). Workpapers. s.n.
Chicago Style (17th ed.) CitationWorkpapers. S.l: s.n, 1993.
MLA引文Workpapers. s.n, 1993.
警告：這些引文格式不一定是100％准確.
APA引文
(1993). Workpapers. s.n.
Chicago Style (17th ed.) CitationWorkpapers. S.l: s.n, 1993.
MLA引文Workpapers. s.n, 1993.