A study of school recesses Heck, William Harry 1879- creator text vau Charlottesville, Va.] The University [1917] 1917 monographic eng
print
22 p. 23 cm. Also available in digital form on the Internet Archive Web site. Also available in digital form on the Internet Archive Web site. Also available in digital form on the Internet Archive Web site. LB3033 .H4 University of Virginia record. Extension ser., vol. III, no. 1, September, 1917 e 18000176 hdl:loc.gdc/scd0001.0021496983A hdl:loc.gdc/scd0001.0021496983A hdl:loc.gdc/scd0001.0021496983A http://hdl.loc.gov/loc.gdc/scd0001.0021496983A http://hdl.loc.gov/loc.gdc/scd0001.0021496983A http://hdl.loc.gov/loc.gdc/scd0001.0021496983A Library, U.S. 810306 20260227111208.0 e 18000176