Learned, W. S. 1., & Wood, B. D. 1. (1938). The student and his knowledge: A report to the Carnegie Foundation on the results of the high school and college examinations of 1928, 1930, and 1932. New York: Carnegie Foundation for the Advancement of Teaching.

Learned, William S. 1876-1950., and Ben D. 1894-1986 Wood. The Student and His Knowledge: A Report to the Carnegie Foundation On the Results of the High School and College Examinations of 1928, 1930, and 1932. New York: Carnegie Foundation for the Advancement of Teaching, 1938.

Learned, William S. 1876-1950., and Ben D. 1894-1986 Wood. The Student and His Knowledge: A Report to the Carnegie Foundation On the Results of the High School and College Examinations of 1928, 1930, and 1932. New York: Carnegie Foundation for the Advancement of Teaching, 1938.