The US Army Signal School apprenticeship program for the trade of photographic equipment maintenance technician
Series: Department of the Army pamphlet -- 621-102; DA pam -- 621-102
Publisher: Headquarters, Dept. of the Army
Published: 1981
Place of publication: Washington, DC
Language: eng
Subjects: U.S. Army Signal School -- Curricula; Photography -- United States -- Equipment and supplies; Photography -- Maintenance and repair
Notes: "This pamphlet supersedes DA Pam 621-102, 1 May 1979."

"15 July 1981."

Also available via Internet from Army web site. Address as of 4/19/06: http://www.army.mil/usapa/epubs/pdf/p621%5F102.pdf; current access available via PURL