NIXON WILL STRESS BUSINESS ON TRIP
White House, on May 17, releases rough outline of Nixon's visit to USSR, saying trip will emphasize official business at expense of ceremony; Nixon, with Mrs Nixon, will leave Washington May 20 and arrive in Moscow May 22 after stopover in Salzburg, Austria; will return to Washington June 1 after visits to Iran and Poland; some data on itinerary within USSR given; White House press sec Ziegler says Nixon will be accompanied by 182 reprs of news media despite USSR efforts to keep down size of press party; in addition, 54 technicians have already gone to USSR to install equipment for radio and TV transmission; Nixon's official party to include Sec Rogers, Kissinger, Amb Beam, Asst Sec Hillenbrand, Arms Control and Disarmament Agency Dir Smith; his other top aides include H R Haldeman, Ziegler, H G Klein, W Safire and R K Price Jr