00698nam0-22002651i-450-99000027165040332120060928135039.0000027165FED01000027165(Aleph)000027165FED0100002716520020821d1954----km-y0itay50------baengy-------001yyRelaxation methodsby D.N. AllenNew YorkMcGraw-Hill Book Co. Inc.1954IX,257 p.24 cm515Allen,Deryck Norman de GarrsITUNINARICAUNIMARCBK99000027165040332104 013-2CI 5149DINCHDINCHUNINA