Columbia subject headings:
French periodicals--Bibliography.
Press, Communist--France--Bibliography.
Trotsky, Leon, 1879-1940.
Harvard subject headings:
French periodicals--Bibliography.
Press, Communist--France--Bibliography.
Radicalism--France--Periodicals--Bibliography.
Trotsky, Leon, 1879-1940--Bibliography.
Princeton subject headings:
French periodicals--Bibliography.
Press, Communist--France--Bibliography.