STUMPF, E. S. (2020). Philosophy: A historical survey with essential readings. mCgRAW-Hill.
Lua i Stíl Chicago (17ú heag.)STUMPF, Enoch Samuel. Philosophy: A Historical Survey with Essential Readings. mCgRAW-Hill, 2020.
Lua MLA (9ú heag.)STUMPF, Enoch Samuel. Philosophy: A Historical Survey with Essential Readings. mCgRAW-Hill, 2020.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.