edited by Peter Mansfield
Oxford University Press, 1973]
Buku Teks
Royal Institute of International Affairs, 1954
Buku Teks
Morrison, Stanley Andrew
SCM Press, 1954
Buku Teks
Stocking, George W.
Vanderbilt University Press, 1970
Buku Teks
Lockman, Zachary
Cambridge, 2004
Buku Teks