Periodic variations in efficiency as shown in mental and physical tests, together with some weather effects
- publisher: Baltimore, Warwick & York, inc.
- creator: Peaks, Archibald Garfield, 1880-1918
- Keyword: Psychological tests. Psychophysiology Weather Physiological effect. Weather Psychological aspects.
- years: 1921.
- pages: 2 p. l., 95 p.
- class: LB1121
- download: pdf file