Avvertimento.
Commercio Epistolare Tomo 6, GDML_Books, (1847), p. IX / Harvested from
Access to full text 
@article{PPN593496108+DMDLOG_0002,
     title = {Avvertimento.},
     booktitle = {Commercio Epistolare Tomo 6},
     series = {GDML\_Books},
     publisher = {Societ\`a Editrice Fiorentina},
     address = {Firenze},
     year = {1847},
     pages = {IX},
     url = {http://dml.mathdoc.fr/item/PPN593496108+DMDLOG_0002}
}

 (éd.). Avvertimento., dans Commercio Epistolare Tomo 6, GDML_Books,  (1847), p. IX. http://gdmltest.u-ga.fr/item/PPN593496108+DMDLOG_0002/