Davis, R. J., & Kolowich, B., Jr. (2017). Fitter faster: The smart way to get in shape in just minutes a day. AMACOM.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रDavis, Robert J., और Brad Kolowich, Jr. Fitter Faster: The Smart Way to Get in Shape in Just Minutes a Day. New York, NY: AMACOM, 2017.
एमएलए (8वां संस्करण) प्रशस्ति पत्रDavis, Robert J., और Brad Kolowich, Jr. Fitter Faster: The Smart Way to Get in Shape in Just Minutes a Day. AMACOM, 2017.
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