Columbia subject headings:
Arguedas, José María--Criticism and interpretation.
Arguedas, José María. Sexto.
Communism in literature.
Peru--In literature.
Vallejo, César, 1892-1938--Criticism and interpretation.
Vallejo, César, 1892-1938. Tungsteno.
Harvard subject headings:
Arguedas, José María--Criticism and interpretation.
Arguedas, José María. Sexto.
Communism in literature.
Peru--In literature.
Vallejo, César, 1892-1938--Criticism and interpretation.
Vallejo, César, 1892-1938. Tungsteno.
Princeton subject headings: