SOVIET WILL HONOR LAW OF COPYRIGHT ON FOREIGN WORKS
USSR announces intention of observing copyrights on books by non-Soviet authors and desire to become party to Universal Copyright Conv, lr from Soviet Foreign Min A I Gromyko to UNESCO Dir Gen R Maheu; non-Soviet citizens' rights will be safeguarded in USSR, which has hitherto produced their work at will without assent, without keeping track of payments due and generally not making such payments; Soviet authorities will not be obliged to pay royalties retroactively on books already published; Internatl PEN Club sec J de Beer hails decision as major breakthrough in that Soviets will keep record of foreign works; Amer expert on Soviet affairs notes reciprocity in keeping track of foreign works could heighten Soviet control over what Russian works are published abroad, adding controls will not extend to Soviet underground literature but will effect works by established though not condoned writers such as Solzhenitsyn and Pasternak