Chase, Samuel B., Jr., author
Brooking Institution, 1968
Buku Teks
Awrejcewicz, Jan, author
Springer, 2012
eBooks
edited by D.C. Smith and Y. Tiffon
Pergamon Press, 1980
Buku Teks
edited by E. Hinton, P. Bettess and R.W. Lewis
Peneridge Press, 1981
Buku Teks
editor, Giorgio Berlot
Springer, 2012
eBooks