http://www.dol.gov/esa/regs/compliance/ofccp/fs11246.htm
http://www.dol.gov/esa/regs/statutes/ofccp/eo11246.htm
http://clinton2.nara.gov/WH/EOP/OP/html/aa/footnotes.html#aa53
http://www.civilrights.org/library/permanent_collection/resources/eo11246.html