Columbia subject headings:
Epistolary poetry, Spanish--History and criticism.
Spanish poetry--Classical period, 1500-1700.
Harvard subject headings:
Epistolary poetry, Spanish--History and criticism.
Spanish poetry--Classical period, 1500-1700--History and criticism
Princeton subject headings:
Epistolary poetry, Spanish--History and criticism.
Spanish poetry--Classical period, 1500-1700--History and criticism.