edited by John Zumerchik
MacMillan Library Reference USA, 1997
Buku Referensi
edited by Otto Neurath, Rudolf Carnap and Charles Morris
University of Chicago Press, 1955
Buku Referensi
H.S. Stuttman , 1989
Buku Referensi
Routledge, 1996
Buku Referensi
McGraw-Hill, 1960; 1966
Buku Referensi