I'd like to read this book
http://www.archive.org/details/TheWorldOfYesterday on my Kobo but I'm not sure how to assemble an ebook from the files listed there. There's a large .djvu file and then tons of html, rtf, and txt files. How can I combine them all into either a .txt, an epub, or any good format for uploading to calibre and then reading on the kobo?
Thanks!