- Encyclopedias and dictionaries (50)
- Education--Curricular (1)
- English language--Dictionaries (1)
- European war, 1914-1918 (1)
- European war, 1914-1918--Bibliography (1)
- History, Modern--19th century (1)
- History, Modern--20th century (1)
- Science--Addresses, essays, lectures (1)
- Sex--Dictionaries (1)
- Technology--Addresses, essays, lectures (1)
- Twentieth century (1)
- Yearbooks (1)