U.S.Mariti me Administration;
Washington;
DC;
USA.;
Hydronautics Research;
Inc.;
Gaithersburg;
Maryland;
USA.;
Waterway Si mulation Technology;
Inc.;
Vicksburg;
Mississippi;
USA.;
U.S.Merchant Marine Academy;
Mariti me Administration;
Kings Point;
New York;
USA.;
Computer Sciences Corporation;
Advanced Marine Center;
Washing-ton;
DC;
USA.;
Houston Pilots Association;
Houston;
Texas;
USA.;
Houston;