ARGENTINA Buenos Aires, 24 – According to sources close to Argentina’s Navy Ministry, the submarine that was attacked by an Argentine warship on May 21 was probably Russian and on a military observation mission along the coast of Argentina, particularly to observe the naval base of Port Cracker. The submarine was noticed as it surfaced in the Nuevo Gulf across from Port Cracker and was asked to identify itself. However, instead of doing so, it submerged rapidly and was then pursued by four Argentine anti-missile ships for several hours. At 7 p.m. local time, the submarine tried to exit the mouth of the gulf toward open sea. Four depth charges were aimed at it. The Soviet Embassy here has characterized as inappropriate the hypothesis that the submarine was Russian. It had not been possible to ascertain whether the submarine was destroyed or whether it had simply sustained damage. DE GAULLE HEADS FOR POWER: Paris, 30 – President Rene Coty met with the leaders of all the political parties today, Barring any new adverse developments, it is considered certain that General Charles de Gaulle will form his government tomorrow and present it to the National Assembly next week.