Cita APA (7th ed.)
Ferriss, T. Tribe of Mentors: Short Life Advice From the Best in the World. Houghton Mifflin.
Cita Chicago (17th ed.)
Ferriss, Timothy. Tribe of Mentors: Short Life Advice From the Best in the World. Boston, EUA: Houghton Mifflin.
Cita MLA (9th ed.)
Ferriss, Timothy. Tribe of Mentors: Short Life Advice From the Best in the World. Houghton Mifflin.
Atenció: Aquestes cites poden no estar 100% correctes.