CIPHER SYSTEMS
Written by Henry Beker, Fred Piper
Published by Northwood Books
in 1982
ISBN: 0442306083
- Categorised in:
- SCIENCE AND TECHNOLOGY
- MATHS
CIPHER SYSTEMS
Written by Henry Beker, Fred Piper.
Stock no. 2121634
1st.
1982.
Softcover.
Slightly better than very good condition.
The Protection of Communications. Pictorial card wraps. 427 pages. ISBN: 0442306083. Light creasing to corners. A few marks to outer page edges.