A study of mental fatigue in relation to the daily school program / [by] W. H. Heck.

  • Heck, W. H. (William Harry), 1879-1919.
Date:
1913
Catalogue details

Licence: Public Domain Mark

Credit: A study of mental fatigue in relation to the daily school program / [by] W. H. Heck. Source: Wellcome Collection.

Provider: This material has been provided by the Augustus C. Long Health Sciences Library at Columbia University and Columbia University Libraries/Information Services, through the Medical Heritage Library. The original may be consulted at the the Augustus C. Long Health Sciences Library at Columbia University and Columbia University.

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