Columbia subject headings:
Authors, German--19th century--Biography.
Authors, German--20th century--Biography.
Christianity in literature.
May, Karl, 1842-1912.
Harvard subject headings:
Authors, German--19th century--Biography
Authors, German--20th century--Biography
Christianity in literature.
May, Karl, 1842-1912
Princeton subject headings:
Authors, German--Biography.
May, Karl, 1842-1912--Criticism and interpretation.
May, Karl, 1842-1912--Influence.
May, Karl, 1842-1912--Religion.
May, Karl, 1842-1912.
Religion in literature.