Rees, Albert
The Economics of trade unions
University of Chicago Press, 1962
 Buku Teks
Barbash, Jack
Trade unions and national economy policy
John Hopkins Press, 1972
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Beirne, Joseph A.
Challenge to Labor new roles for American trade unions
Prentice-Hall, 1969
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Herling, John
Labor unions in America / John Herling
Robert B. Luce, Inc., 1964
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Metz, Harold W.
Labor policy of the federal government / Harold W. Metz
The Brookings Institution, 1945
 Buku Teks