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secondo molte fonti pollution sarebbe uscito alla fine del 1972, ma il disco porta sull'etichetta la data 1973 e sul vinile, stampigliata al termine dei solchi della prima facciata, compare la data 16-1-73.
according to many sources pollution was issued at the end of 1972, but the record has on the label the year 1973 and on the vinyl, on the run-off groove of side 1, the date 16-1-73.
