Efficiency in liberal education : a study of comparative instructional costs for different ways of organizing teaching-learning in a liberal arts college / Howard R. Bowen, Gordon K. Douglas ; A Report Prepared for The Macalester Foundation and issued by The Carnegie Commission on Higher Education. - Bowen, Howard Rothmann (1908-1989); Douglass, Gordon K. (1927-2017) (McGraw-Hill Book Company, 1971)