Columbia subject headings:
Encyclopedias and dictionaries--Periodicals.
Encyclopedias and dictionaries.
History, Modern--20th century--Periodicals.
History, Modern--21st century--Periodicals.
Yearbooks.
Harvard subject headings:
Princeton subject headings:
Encyclopedias and dictionaries.
History, Modern--20th century--Periodicals.
History, Modern--21st century--Periodicals.
Periodicals.