Columbia subject headings:
American newspapers--Foreign language press--Bibliography.
American periodicals--Foreign language press--Bibliography.
Canadian newspapers--Foreign language press--Bibliography.
Canadian periodicals--Foreign language press--Bibliography.
Press, Labor--Canada--Bibliography.
Press, Labor--United States--Bibliography.
Harvard subject headings:
American newspapers--Foreign language press--Bibliography.
American periodicals--Foreign language press--Bibliography.
Canadian newspapers--Foreign language press--Bibliography.
Canadian periodicals--Foreign language press--Bibliography.
Press, Labor--Canada--Bibliography.
Press, Labor--United States--Bibliography.
Princeton subject headings:
American newspapers--Foreign language press--Bibliography.
American periodicals--Foreign language press--Bibliography.
Canadian newspapers--Foreign language press--Bibliography.
Canadian periodicals--Foreign language press--Bibliography.
Press, Labor--Canada--Bibliography.
Press, Labor--United States--Bibliography.