Columbia subject headings:
Guruceaga, Juan de, 1897-1974.
Printers--Venezuela--Biography.
Printing--Venezuela--History--20th century.
Publishers and publishing--Venezuela--Biography.
Venezuela--Imprints.
Harvard subject headings:
Guruceaga, Juan de, 1897-1974.
Printers--Venezuela--Biography.
Publishers and publishing--Venezuela--Biography.
Princeton subject headings:
Guruceaga, Juan de, 1897-1974.
Printers--Venezuela--Biography.
Publishers and publishing--Venezuela--Biography.