Ludlum, R. (1972). The osterman week end.
Chicago Edition CitationLudlum, Robert. The Osterman Week End. London, Grafton, 1972.
MLA引文Ludlum, Robert. The Osterman Week End. 1972.
警告：這些引文格式不一定是100％准確.
APA引文
Ludlum, R. (1972). The osterman week end.
Chicago Edition CitationLudlum, Robert. The Osterman Week End. London, Grafton, 1972.
MLA引文Ludlum, Robert. The Osterman Week End. 1972.