Secret Sentries in Space
- Hardcover
- New York: Random House, 1971
New York: Random House, 1971. First Edition. Hardcover. Near Fine/Near Fine. Near Fine in a Near Fine jacket, clipped, lightly bumped at the edges. Blue cloth with silver and blue gilt lettering and designs on the spine and front board. Firmly bound with a slight forward lean, clean internally. Klass's work about satellite surveillance during the Cold War. From the collection of ufologist Tom Benson.