Willborn, Steven L.
Employment law: cases and materials/ Stewart J. Schwab; John F. Burton
The Michie Company, 1993
 Buku Teks
Harper, Michael C
Labor law cases, materials, and problems/Michael C. Harper; Samuel Estreicher
Little, Brown and Company, 1996
 Buku Teks
McDonald, Stephen L.
Federal tax treatment of income from oil and gas : a background paper prepared for a conference of experts held October 18-19, 1962, together with a summary of the conference discussion / Stephen L. McDonald.
The Brookings Institution , 1963
 Buku Teks
Tomain, Joseph P.
Energy law in anut shell /Joseph P. Tomain
West Publishing Company, 1981
 Buku Teks
Posin, Daniel Q.
Federal income taxation of individuals with diagrams for easy understanding of the leading cases and concepts/ Daniel Q. Posin
St. Paul Minnesota, 1993
 Buku Teks