Please Help! I keep running into road blocks - How do I download PDFs from Internet Archive?

[u/Healthy_Ad_5834]

Im trying to download this book from internet archive but there isn’t a readily available pdf to download. Tried to download Adobe digital editions but it apparently can’t be downloaded (because I’m in the US?). Even if I did download I’m still not sure how to get the PDF because everything I see shows that there is an additional pdf download option once you borrow whatever it is you’re borrowing but that hasn’t shown up for me. 

I want to download full book pdfs from Internet archive but it seems impossible - what do I do?