Secret Languages
By: by Dina Anastasio
Series: Macmillan McGraw-Hill leveled reader library. Informational nonfiction. Social Studies. Culture
Publisher: Macmillan/McGraw-Hill
Published: 2006
Place of publication: New York, New York
Language: eng
Number of pages: 24
ISBN-13: 9780021932870
Subjects: Readers (Elementary); Juvenile literature; Ciphers; Cryptography; History
Description: Describes codes and secret messages used throughout history.
Notes: "5.5 Week 4."

Includes index.

Grade 4.

GR U, Benchmark 50, Lexile 680.