Ferriss, T. (2017). Tribe of mentors: Short life advice from the best in the world. Houghton Mifflin Harcourt.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रFerriss, Timothy. Tribe of Mentors: Short Life Advice from the Best in the World. Boston: Houghton Mifflin Harcourt, 2017.
एमएलए (8वां संस्करण) प्रशस्ति पत्रFerriss, Timothy. Tribe of Mentors: Short Life Advice from the Best in the World. Houghton Mifflin Harcourt, 2017.
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