Columbia subject headings:
Adán, Martín, 1908-1985--Criticism and interpretation.
Vallejo, César, 1892-1938--Criticism and interpretation.
Westphalen, Emilio Adolfo, 1911-2001--Criticism and interpretation.
Harvard subject headings:
Adán, Martín, 1908---Criticism and interpretation.
Adán, Martín, 1908-1985--Criticism and interpretation.
Peruvian literature--20th century--History and criticism.
Vallejo, César, 1892-1938--Criticism and interpretation.
Westphalen, Emilio Adolfo, 1911---Criticism and interpretation.
Westphalen, Emilio Adolfo, 1911-2001--Criticism and interpretation.
Princeton subject headings:
Adán, Martín, 1908-1985--Criticism and interpretation.
Peruvian poetry--20th century--History and criticism.
Vallejo, César, 1892-1938--Criticism and interpretation.
Westphalen, Emilio Adolfo, 1911-2001--Criticism and interpretation.