Columbia subject headings:
Harvard subject headings:
Krause, Karl Christian Friedrich, 1781-1832--Influence.
Philosophy, Spanish--19th century.
Sanz del Río, Julián, 1814-1869.
Princeton subject headings:
Krause, Karl Christian Friedrich, 1781-1832--Influence.
Philosophy, Spanish--19th century.
Sanz del Río, Julián, 1814-1869.