O'Reilly, W., O'Reilly, W. E., & Steven-Johan, Z. (1992). The enemy within. Times Books Internat.
Chicago Style (17th ed.) CitationO'Reilly, William, William E. O'Reilly, and Zarin Steven-Johan. The Enemy Within. Singapore [u.a.]: Times Books Internat, 1992.
MLA (8th ed.) CitationO'Reilly, William, et al. The Enemy Within. Times Books Internat, 1992.
Warning: These citations may not always be 100% accurate.