by University of Colorado (Boulder campus). Dept. of Psychology and Education

1902

by Colorado Agricultural Experiment Station

1894

by University of Colorado (Boulder campus)

1895

by University of Colorado (Boulder campus), University of Colorado. Board of Regents

1904

by Colorado. Dept. of Public Instruction

1902

by Colorado. Office of Commissioner of Education

1929

by Colorado. Office of the Superintendent of Public Instruction

1929

by Colorado. Dept. of Public Instruction

1912

by Colorado. Department of Education

1912

by University of Colorado Boulder

1922

by Colorado. Dept. of Education

1919

by University of Colorado Health Sciences Center. School of Medicine, University of Colorado, Boulder

1906