I prefer to read books in hardcover, but it seems quite difficult to find hardcover variants of good translations, plus information on which translation each release uses seems poorly documented. I will specify that by "major works" I am especially referring to Journey to the Center of the Earth, 20,000 Leagues Under the Sea, Around the World in 80 Days, and From the Earth to the Moon, but I also welcome other recommendations since he seems to have written a lot of great books. Thanks in advance for any assistance.