An investigation of student study lighting
By: by John O. Kraehenbuehl.
Series: University of Illinois bulletin ;; v. 34, no. 60; Circular / University of Illinois, Engineering Experiment Station ;; no. 28, March 26, 1937; Circular (University of Illinois (Urbana-Champaign campus). Engineering Experiment Station) ;; no. 28
Publisher: University of Illinois
Published: 1937
Place of publication: Urbana
Language: eng
Number of pages: 35
Subjects: Electric lighting.; Electric lamps.
Other titles: Student study lighting.