Columbia subject headings:
Senghor, Léopold Sédar, 1906-2001--Criticism and interpretation.
Whitman, Walt, 1819-1892--Criticism and interpretation.
Harvard subject headings:
Senghor, Léopold Sédar, 1906-2001--Philosophy.
Senghor, Léopold Sédar, 1906-2001--Political and social views.
Whitman, Walt, 1819-1892--Philosophy.
Whitman, Walt, 1819-1892--Political and social views.
Princeton subject headings:
Senghor, Léopold Sédar, 1906-2001--Philosophy.
Senghor, Léopold Sédar, 1906-2001--Political and social views.
Whitman, Walt, 1819-1892--Philosophy.
Whitman, Walt, 1819-1892--Political and social views.