Columbia subject headings:
Music critics--France--Lyon--Diaries.
Music--France--20th century--History and criticism.
Music--France--Lyon--History and criticism.
Vallas, Léon, 1879-1956--Diaries.
Harvard subject headings:
Diaries
Music critics--France--Lyon--Diaries.
Vallas, Léon, 1879-1956--Diaries.
Princeton subject headings: