Columbia subject headings:
Ecuadorian periodicals--History.
Guayaquil (Ecuador)--Imprints.
Printing--Ecuador--Guayaquil--History--19th century.
Harvard subject headings:
Ecuadorian periodicals--History.
Guayaquil (Ecuador)--Imprints.
Printing--Ecuador--Guayaquil--History--19th century.
Princeton subject headings: