Columbia subject headings:
Harvard subject headings:
Counseling--History.
Friendship--History.
Goethe, Johann Wolfgang von, 1749-1832--Criticism and interpretation.
Gracián y Morales, Baltasar, 1601-1658--Criticism and interpretation.
Knigge, Adolf, Freiherr von, 1752-1796--Criticism and interpretation.
Princeton subject headings:
Friendship.
Goethe, Johann Wolfgang von, 1749-1832--Criticism and interpretation.
Gracián y Morales, Baltasar, 1601-1658--Criticism and interpretation.
Knigge, Adolf, Freiherr von, 1752-1796--Criticism and interpretation.