Index of industrial activity in the United States
Subtitle: a statement of procedures followed in its construction
Publisher: American Telephone and Telegraph Company, Chief Statistician's Division
Published: 1935
Place of publication: New York?]
Language: eng
Subjects: Index numbers (Economics)
Notes: Reproduced from type-written copy.

Microfilm. New York, N.Y., Columbia University Libraries, 1995. 1 microfilm reel, 35 mm.

Filmed; NEH Project (FMEST); 1995.