Columns of demonstrators pass through Red Square.
Mikhail Gorbachev, N. Ryzhkov, A. Gromyko on the podium of the Mausoleum greet the workers.
Demonstrators carry slogans and banners.
Balloons with posters "Mir", "Trud", "May" rise above the square.
Spectators in the guest stands.
Cosmonauts B. Egorov, A. Nikolaev, A. Volkov give an interview to the correspondent.
American unemployed Joseph Mowry on Red Square gives an autograph to a Soviet boy.
Locations: Moscow