Regulations of the National Board of Fire Underwriters for the protection of openings in walls and partitions against fire
By: as recommended by the National Fire Protection Association
Series: NBFU pamphlet -- no. 80
Publisher: National Board of Fire Underwriters
Published: 1939
Place of publication: New York
Language: eng
Number of pages: 104
Subjects: Fire prevention
Notes: Microfilm. New York, N.Y., Columbia University Libraries, 1996. 1 microfilm reel, 35 mm.

Filmed; NEH Project (FMEST); 1996.