Mitchell, H. B. (2019). Roots of wisdom: A tapestry of philosophical traditions (Eighth edition.). Cengage Learning.
Lua i Stíl Chicago (17ú heag.)Mitchell, Helen Buss. Roots of Wisdom: A Tapestry of Philosophical Traditions. Eighth edition. Australia: Cengage Learning, 2019.
Lua MLA (9ú heag.)Mitchell, Helen Buss. Roots of Wisdom: A Tapestry of Philosophical Traditions. Eighth edition. Cengage Learning, 2019.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.