Summary Technical Report of the Applied Psychology Panel, NDRC. Volume 1. Human Factors in Military Efficiency - Aptitude and Classification (1946)
Defense Technical Information Center · leaf 129
PRINCIPLES AND DEVICES FOR MILITARY CLASSIFICATION 114 … &H8' 69-70- to 8-9 1/24 2$^8 6S-66\ Vy .7/72' \V •731/P uAs^tr- Gcr HCIBHT VISION ABE Figure 4. Wiring diagram for optical selectometer.
Wolfle, Dael · Office of scientific research and development washington dc national defense research committee · Military Personnel · Military psychology · Psychology · Classification · Selection
Internet Archive · Defense Technical Information Center · Public domain (US government work). Free to use for anything.