A comparison of certain visual factors with the efficiency of textile inspectors.
Published: 1940
Language: eng
Format: Microform
Number of pages: 56
Subjects: Vision.
Notes: Thesis (Ph.D.) - University of Pennsylvania, 1940.

Includes bibliographical references.

Microfilm. Ann Arbor, Mich., University Microfilms 1940.

SHORT CIRCULATION RECORD.