Iverson, Peter, author
West Sussex John Wiley & Sons Inc , 2015
Buku Teks
Link, Arthur S., author
Alfreda A. Knopf, 1955
Buku Teks
Link, Arthur S., author
Alfreda A. Knopf, 1963
Buku Teks
Link, Arthur S., author
Alfred A. Knopf, 1963
Buku Teks
Jones, Howard Mumford, author
Harvard University Press, 1964
Buku Teks