edited by Stanley J. Kunitz and Howard Haycraft
H.W. Wilson, 1950
Buku Referensi
edited by Stanley J. Kunitz and Vineta Colby
H.W. Wilson, 1963
Buku Referensi
Nicholson, Margaret, author
Oxford University Press, 1957
Buku Referensi
Wichman, K., author
New York, David Mckay Company
Buku Referensi
Winstedt, Richard O., author
Kelly & Walsh Limited, [date of publication not identified]
Buku Referensi