Columbia subject headings:
Harvard subject headings:
America--Literatures.
American literature--20th century--History and criticism
Language and languages--Variation
Linguistics in literature.
Linguistics--America.
Literature, Modern--Technique.
South America--Languages--Standardization--History.
South America--Literatures--History and criticism.
Standard language--South America--History.
Standard language--United States--History.
United States--Languages--Standardization--History.
Princeton subject headings:
America--Literatures.
Language and languages--Variation.
Linguistics in literature.
Linguistics--America.
Literature, Modern--Technique.