edited by Edward Conrad Smith and Arnold John Zurcher
Barnes & Noble, 1966
Buku Teks SO
[Publisher not identified], 1968
Buku Teks
McCarthy, Eugene J., 1916-2005
Macmillan, 1962
Buku Teks SO
edited by Edward Conrad Smith and Arnold John Zurcher
Barnes & Noble, 1955
Buku Referensi
Elliot, Florence
Penguin Books, 1957
Buku Referensi