Ludlum, R. (1988). The Icarus agenda. London: Grafton Books.
Παραπομπή Chicago StyleLudlum, Robert. The Icarus Agenda. London: Grafton Books, 1988.
MLA引文Ludlum, Robert. The Icarus Agenda. London: Grafton Books, 1988.
警告：这些引文格式不一定是100％准确.
APA引文