Specifications for Library of Congress microfilming.
- Washington Library of Congress; [for sale by the Superintendent of Documents, U.S. Govt. Print. Off.] 1964.
- v, 21 p. illus. 26 cm.
Bibliography: p. 21.
64060058 //r894
Microphotography.--Specifications--United States. Newspapers on microfilm--Standards--United States.