Salmon, Stephen R.

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.

Z265 / .S24