Columbia subject headings:
Harvard subject headings:
American literature--Afro-American authors--History and criticism.
Outsiders in literature
Princeton subject headings:
African Americans in literature.
American fiction--20th century--History and criticism.
American fiction--African American authors--History and criticism.
Marginality, Social, in literature.
Morrison, Toni. Sula.
Outsiders in literature.
Wideman, John Edgar. Reuben.
Wright, Richard, 1908-1960. Native son.