Flowchart symbols and their usage in micrographics
Publisher: National Micrographics Association
Published: 1973
Place of publication: Silver Spring, Md
Language: eng
Copyright date: 1973
Subjects: Flow charts; Standards; Micrographics
Notes: "ANSI PH5.17-1973; approved August 6, 1973 as an American National Standard."

"NMA MS4-1972."

Includes bibliographical references.