. "Rocce sedimentarie"@it . "2005-12-29" . . . . . . . . . . . . . . . . . . . . . . "Rocce esogene"@it . . . . . . . . . . . . . . . . . . . . "FONTE: Soggettario; Treccani.it; Zin; DETS; DizGeo; IATE; ThIST; TRT; WebDewey(IT); Wikipedia(IT)" . "552.5"^^ .