Cover image for Standards for public school janitorial-engineering service
Title:
Standards for public school janitorial-engineering service
Author:
Engelhardt, N. L. (Nickolaus Louis), 1882-1960.
Publication Information:
New York city : Teachers college, Columbia university, 1926.
Physical Description:
2 pages l., 53 pages including form. ; 23 cm
Language:
English
Format :
Book