Columbia subject headings:
Cowper, William, 1731-1800--Correspondence.
Poets, English--18th century--Correspondence.
Harvard subject headings:
Cowper, William, 1731-1800--Correspondence.
Personal correspondence.
Poets, English--18th century--Correspondence
Princeton subject headings:
Cowper, William, 1731-1800. Correspondence.
Poets, English--18th century--Correspondence.