2011 - Go If You Think It Your Duty a Minnesota Couple's Civil War Letters (Paperback) → Hardcover ISBN-13: 9780873518345 ISBN-10: 0873518349 Genres: Biographies & Memoirs, History, Literature & Fiction ? 2008 - Go If You Think It Your Duty a Minnesota Couple's Civil War Letters (Hardcover) → Paperback ISBN-13: 9780873516006 ISBN-10: 0873516001 Genres: Biographies & Memoirs, History, Literature & Fiction 1 |