The Austro-Hungarian Connection

From Author Wars - https://authorwars.com/books/the-austro-hungarian-connection-965858.html

Overview:

Unknown. Ring of Fire II (Unknown, Eric Flint, Baen Books, ISBN-10: 9781416573876, $25.00, [x]+562 pages, Hardcover, Anthology)
Unknown. Ring of Fire II (Unknown, Eric Flint, Baen Books, ISBN-10: 9781416591443, $7.99, i+836 pages, Paperback, Anthology)
Unknown. Worlds II (Unknown, Eric Flint, Baen Books, ISBN-10: 9781481484206, $7.99, 776 pages, Paperback, Collection)
Unknown. The 1635: The Eastern Front Disk (Unknown, Eric Flint, Baen Books, $0.00, other, Omnibus)
2008 . Ring of Fire II (2008, Eric Flint, Baen Books, ISBN-10: 9781416573876, $6.00, pages, ebook, Anthology)
2018 . Worlds II (2018, Eric Flint, Baen Books, ISBN-10: 9781481483414, $16.00, 537 pages, Trade Paperback, Collection)
2018 . Worlds II (2018, Eric Flint, Baen Books, ISBN-10: 9781625796554, $8.99, ebook, Collection)
2020 . Worlds 2 (2020, Eric Flint, Tantor Audio, ISBN-10: 9781541439740, $24.49, digital audio download, Collection)
2020 . Ring of Fire II (2020, Eric Flint, Recorded Books and Blackstone Publishing, ISBN-10: 9781664754270, $29.95, audio MP3 CD, Anthology)
2020 . Ring of Fire II (2020, Eric Flint, Recorded Books, ISBN-10: 9781980050353, $38.49, pages, digital audio download, Anthology)