ColeW. E.The Development of Supervision of Instruction.1928. (Master's thesis on file in the Library of Cornell University)
2.
ColeW. E.The Status of Rural Supervisors of Instruction in the United States.1930. (Doctor's thesis on file in the Library of Cornell University)
3.
CookKatherine M. (U. S. Bureau of Education, Rural School Circular, No. 29.) Washington, 1928.
4.
GaumnitzW. H.Some Comparative Statistics of Public School Education in Urban and Rural Communities, Washington, 1928. (U. S. Bureau of Education, Rural School Circular No. 27)
5.
KibbeDelia. “An analysis of the activities of rural supervisors.” Elem. Sch. Jour., 28: 1928, 346–352.
6.
MarshallJustine E.A Study of Achievement of the Pupils in Johnson and Whitney Counties. (Master's thesis on file in the Library of Indiana University)
7.
MisnerFrank.A Study of the Comparative Achievements of Pupils in Supervised and Unsupervised Rural Schools.” 1927. (Master's thesis on file in the Library of the State College of Washington)
8.
MorganDavid Ansel.The Effects of Supervision in Certain Rural Schools of Johnson County, Kansas.1926. (Master's thesis on file in the Library of the University of Chicago)
9.
National Education Association. “The principal studies his job.” Research Bull. of the Nat. Educ. Assoc., 6: 1928, 90–91.
10.
New York Council of Superintendents.Cardinal Objectives in Elementary Education.Albany, 1929. P. 13.
11.
PittmanM. S.The Value of School Supervision.Baltimore, 1921. Pp. 78ff.
12.
SherwoodHenry N.Value of Rural School Supervision: Results of Two-Years Demonstration in Indiana.Indianapolis, 1925. P. 8. (Indiana State Department of Public Instruction, Educational Bulletin, No. 84)
13.
SouthallMaycie.A Study of the Value of Supervision in Consolidated Schools., Raleigh, 1925. P. 31. (Educational Publication, No. 106)
14.
TerrebonneLucius P.An Experiment in Parish-wide Supervision.1929. (Master's thesis on file in the Library of Louisiana State University and Agricultural and Mechanical College)