Cita APA (7a ed.)

Warrell, M., & Warrell, M. (2019). Train the brave: Tame your fear, take the chance, dare to live big (2nd edition.). Wiley.

Cita Chicago Style (17a ed.)

Warrell, Margie, y Margie Warrell. Train the Brave: Tame Your Fear, Take the Chance, Dare to Live Big. 2nd edition. Milton, Queensland, Australia: Wiley, 2019.

Cita MLA (9a ed.)

Warrell, Margie, y Margie Warrell. Train the Brave: Tame Your Fear, Take the Chance, Dare to Live Big. 2nd edition. Wiley, 2019.