edited by Philipp Kiiver
Europa Law, 2010
Buku Teks
Haigh, Nigel, author
Graham and Trotman, 1986
Buku Teks
McLaughlin, Andrew C., author
Appleton Century Crofts, 1935
Buku Teks
edited by Ellen M. Codlin
Aslib, 1986
Buku Referensi
Swisher, Carl Brent, author
University of Chicago Press, 1946
Buku Teks