Όμηρος
United States. National Transportation Safety Board.
T. S. Eliot
Cohen, Ronald Jay.
United States. General Accounting Office
Norman Edward Gronlund
Peter Kim
N. L. Gage
Jorge Segers
Lewis R. Aiken
M. David Miller
Norman E. Fenton
Gary Groth-Marnat
David Kennedy
Dean H. Hepworth
Kevin R. Murphy
Tony Buzan
Anthony J. Nitko