Disputatio Libri:Principia newton la.djvu

Hic non verus fasciculus est, sed transcriptum Incepti Gutenbergensis PDF creatum. Prosody (disputatio) 22:32, 30 Septembris 2017 (UTC)[reply]

Indeed. Use Gutemberg transcribed text is a valid aproach as a secondary source; but texts in the Index namespace shoud be always a realible primary sources (published book, manuscript, hand note, etc). Giro720 (disputatio) 21:10, 13 Martii 2021 (UTC)[reply]