APA (7 वां संस्करण) प्रशस्ति पत्र

Grabel, G. (2012). Wealth opportunities in commercial real estate: Management, financing and marketing of investment properties. Wiley.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Grabel, Gary. Wealth Opportunities in Commercial Real Estate: Management, Financing and Marketing of Investment Properties. Hoboken, N.J.: Wiley, 2012.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Grabel, Gary. Wealth Opportunities in Commercial Real Estate: Management, Financing and Marketing of Investment Properties. Wiley, 2012.