Doctoral dissertations accepted by American universities / compiled for the National Research Council and the American Council of Learned Societies by the Association of Research Libraries.

no.1-5 1933-1938; no.5 1937-1938; v.4-6 1936/39; no.6-7 1938-1939; yr.1938/42; v.7-9 1939/42; no.9 1941-1942; no.6-10 1938-1943; no.10 1942-1943; no.11 1943-1944; no.12 1944-1945; no.13 1945-1946; yr.1942/47; no.14 1946-1947; no.11-15 1943-1948; no.15 1947-1948; no.16 1948-1949; no.17 1949-1950; no.16-18 1948-1951; no.18 1950-1951; no.19 1951-1952; no.20 1952-1953; no.21 1953-1954; no.22 1954-1955