The US Army Signal School apprenticeship program for the trade of central office telephone installer and repairer
Series: Department of the Army pamphlet -- 621-63; DA pam -- 621-63
Publisher: Headquarters, Dept. of the Army
Published: 1981
Place of publication: Washington, DC
Language: eng
Subjects: U.S. Army Signal School -- Curricula; Telephone systems -- Maintenance and repair
Notes: "This pamphlet supersedes DA Pam 621-63, 15 April 1979."

"15 July 1981."