Callahan, R. B. (2014). Private college enrollment in the Midwest: An exploration of significant growth within a 10-year period : submitted to Northcentral University in partial fulfillment of the requirements for the degree of Doctor of Philosophy. ProQuest.
Trích dẫn kiểu Chicago (xuất bản lần thứ 7)Callahan, Robert B. Private College Enrollment in the Midwest: An Exploration of Significant Growth Within a 10-year Period : Submitted to Northcentral University in Partial Fulfillment of the Requirements for the Degree of Doctor of Philosophy. Ann Arbor, MI: ProQuest, 2014.
Trích dẫn kiểu MLA (xuất bản lần thứ 8)Callahan, Robert B. Private College Enrollment in the Midwest: An Exploration of Significant Growth Within a 10-year Period : Submitted to Northcentral University in Partial Fulfillment of the Requirements for the Degree of Doctor of Philosophy. ProQuest, 2014.