Bob Baulch, editor
Edward Elgar, 2011
Buku Teks
Gay, Phillip T., author
McGraw-Hill, 2001
Buku Teks
Thomson, Ian, author
John Murray, 1957, 1960
Buku Teks
Carnell, Francis G.
[T.t.] [T.p.] [t.th.]
Buku Teks
edited by Robert N. Bellah
Free Press, 1965
Buku Teks