Harriet Tubman, Secret Agent: How Daring Slaves and Free Blacks Spied for the Union During the Civil War

by Thomas B. Allen Hardcover details (USA). (see also: ) details (Italy). (see also: Copertina flessibile) details (Spain - España). (see also: Tapa dura) ISBN: 978-0-7922-7889-4 ISBN-10: 0-7922-7889-5 National Geographic Children's Books · 2006