Otter, J. (2012). Worth it-- not worth it?: Simple & profitable answers to life's tough financial questions. Business Plus.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रOtter, Jack. Worth It-- Not Worth It?: Simple & Profitable Answers to Life's Tough Financial Questions. New York: Business Plus, 2012.
एमएलए (8वां संस्करण) प्रशस्ति पत्रOtter, Jack. Worth It-- Not Worth It?: Simple & Profitable Answers to Life's Tough Financial Questions. Business Plus, 2012.
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