Mackenzie, Gavin.
The aristocracy of labor : the position of skilled craftsmen in the American class structure /​ Gavin Mackenzie.
Cambridge University Pres, 1973
 Buku Teks
Harris, J. Manville.
International finance /​ J. Manville Harris
Barron's Educational Series, 1992
 Buku Teks
Pelling, Henry
American labor / Henry Pelling
The University of Chicago Press, 1962
 Buku Teks
Gould, William B., IV, author
A primer on American labor law
MIT Press, 1982
 Buku Teks
Litwack, Leon, author
The American labor movement
Prentice-Hall, 1962
 Buku Teks
Rifkin, Bernard, author
American labor sourcebook
McGraw-Hill, 1979
 Buku Teks