68=14,3; 80=15,3; 93=16,3; 153=20,4; 180=22,3; 192=23,3; 205=24,4; 219=25,6; 231=26,6; 243=27,6; 259=28,10; 272=29,11; 285=30,10; 301=31,13; 317=32,13; 333=33,13; 349=34,13; 365=35,13; 381=36,13; 400=37,14; 441=39,17; 583=46,18; 604=47,19; 625=48,17; 650=49,16; 675=50,19 von: University of Colorado Boulder: University of Colorado bulletin
68=1913/14; 80=1914/15; 93=1915/16; 153=1919/20; 180=1921/22; 192=1922/23; 205=1923/24; 219=1924/25; 231=1925/26; 243=1926/27; 259=1927/28; 272=1928/29 von: University of Colorado Boulder: University of Colorado catalogue
285=1929/30; 301=1930/31; 317=1931/32; 333=1932/33; 349=1933/34; 365=1934/35; 381=1935/36; 400=1936/37; 441=1938/39; 583=1946/47; 604=1947/48; 625=1948/49; 650=1949/50; 675=1950/51 von: University of Colorado Boulder: General catalog
68=16; 80=18 von: University of Colorado Boulder: [University of Colorado bulletin / Catalogue series]
256=16,2; 275=17,3; 286=18,2; 303=18,4; 316=19,3; 319=20,1; 322=20,2/3; 336=21,1; 350=22,1; 364=22,2/3; 367=23,1 von: University of Colorado Boulder: The University of Colorado studies
319=1932; 336=1933; 350=1934; 367=1935; 385=1936; 403=1937 von: University of Colorado Boulder: Abstracts of theses and reports for higher degrees
423=26,1; 442=26,2; 565=27,3; 585=27,4; 651=28,2/3; 689=28,4; 726=29,1; 763=29,2; 793=29,3; 832=29,4 von: University of Colorado Boulder: [University of Colorado studies / General series]
