Sheffel, E. (2004). Study guide for use with Legal environment of business in the information age. McGraw-Hill.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSheffel, Evan. Study Guide for Use with Legal Environment of Business in the Information Age. Boston: McGraw-Hill, 2004.
एमएलए (9वां संस्करण) प्रशस्ति पत्रSheffel, Evan. Study Guide for Use with Legal Environment of Business in the Information Age. McGraw-Hill, 2004.
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