Charley, L., & O'Rourke, L. (1916). Opportunities: How to make the most of them (Authorized ed.). Funk & Wagnalls Co.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रCharley, L., और Lorenzo O'Rourke. Opportunities: How to Make the Most of Them. Authorized ed. New York: Funk & Wagnalls Co, 1916.
एमएलए (9वां संस्करण) प्रशस्ति पत्रCharley, L., और Lorenzo O'Rourke. Opportunities: How to Make the Most of Them. Authorized ed. Funk & Wagnalls Co, 1916.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.