01026nam a2200277 i 450099100131766970753620020507114338.0970308s1981 us ||| | eng 0835213692b10203801-39ule_instLE00645746ExLDip.to Fisicaita01011.7R.R. Bowker Company, New York461268Ulrich's international periodicals directory :a classified guide to current periodicals, foreign and domestic /R.R. Bowker Company20th ed.New York :R.R. Bowker Company,1981xxxvi, 2212 p. ;23 cm.Periodicals-Bibliography.b1020380121-09-0627-06-02991001317669707536LE006 0 BOW12006000077903le006-E0.00-l- 00000.i1025183227-06-02Ulrich's international periodicals directory192638UNISALENTOle00601-01-97ma -engus 01