1973
Buku Klasik
1973
Buku Klasik
edited by Barbara A. Bristow, Christi Showman Farrar
H.W. Wilson, a division of EBSCO Information Services ; Amenia, NY : Grey House Publishing, 2014
Buku Referensi
edited by Joseph Miller
H.W. Wilson Company, 1997
Buku Referensi
Her Majesty's Stationery Office, 1989
Buku Referensi