Columbia subject headings:
Harvard subject headings:
Courtship--Austria--History--19th century.
Courtship--Austria--History--20th century.
Love-letters--Austria--History--19th century.
Love-letters--Austria--History--20th century.
Man-woman relationships--Austria--History--19th century.
Man-woman relationships--Austria--History--20th century.
Princeton subject headings:
Courtship--Austria--History--19th century.
Courtship--Austria--History--20th century.
Love-letters--Austria--History--19th century.
Love-letters--Austria--History--20th century.
Man-woman relationships--Austria--History--19th century.
Man-woman relationships--Austria--History--20th century.