Hart, C. (2018). Simple lessons, quick results: Essential tips and tricks for drawing people (First edition.). Get Creative 6.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHart, Christopher. Simple Lessons, Quick Results: Essential Tips and Tricks for Drawing People. First edition. New York: Get Creative 6, 2018.
एमएलए (8वां संस्करण) प्रशस्ति पत्रHart, Christopher. Simple Lessons, Quick Results: Essential Tips and Tricks for Drawing People. First edition. Get Creative 6, 2018.
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