edited by John Herman Randali, Justus Buchler
Barnes & Noble, 1950
Buku Teks
Goldman, Alvin I.
MIT Press, 1993
Buku Teks
Stumpf, Samuel Enoch, 1918-1998
McGraw-Hill, 2012
Buku Teks
Gyula Klima, Fritz Allhoff, Anand Vaidya
BlackWell Publishing, 2007
Buku Teks
edited by Herbert Morris
Stanford University Press, 1961
Buku Teks