edited by A.J. Culyer and K.G. Wright
Martin Robertson, 1978
Buku Teks
edited by Victor R. Fuchs
University of Chicago, 1982
Buku Teks
edited by Peter C. Smith, Laura Ginnelly and Mark Sculpher
Open University Press, 2005
Buku Teks
Robbins, Lionel Robbins, Baron, 1898-1984, editor
McMillan & Co., 1952
Buku Teks
Drummond, Michael F., author
Oxford University Press, 1981
Buku Teks