Communication.
By: [By] Oscar L. Brauer, Harry Engwicht, Earnest S. Greene [and] Wilbur H. Moreland, Natural Science Department, San Jose State College. Published by California State Department of Education, Sacramento.
Contributors: Engwicht, Harry, joint author.; Greene, Earnest S., joint author.; Moreland, Wilbur H. joint author.; California. State Dept. of Education.
Series: California. [Committee on science guide for elementary schools] Science guide for elementary schools,; vol. III, no. 5
Publisher: California State Printing Office, G.H. Moore, State Printer
Published: 1937
Place of publication: [Sacramento
Language: eng
Number of pages: 54
Subjects: Communication and traffic.; Sound.; Telegraph.; Telephone.; Radio.
Notes: Bibliography: p. 54.
Cover title.