Study of Rural Schools in Wichita CountyEdward Everett Davis, Clarence Truman Gray, Thomas Hall Shelby · First published 2015Open the Tome
Statistics applied to education and psychologyClarence Truman Gray · First published 1939Open the Tome
Reading in a Texas cityStuart McGehee Lloyd, Clarence Truman Gray · First published 1920Open the Tome
Types of reading ability as exhibited through tests and laboratory experimentsClarence Truman Gray · First published 1917Open the Tome
A score card for the measurement of handwritingClarence Truman Gray · First published 1915Open the Tome
Variations in the grades of high school pupilsClarence Truman Gray · First published 1913Open the Tome
