Columbia subject headings:
Harvard subject headings:
Sugar growing--Peru--Lambayeque (Department)--History--Sources.
Sugar trade--Peru--Lambayeque (Department)--History--Sources.
Sugar workers--Peru--Lambayeque (Department)--History--Sources.
Princeton subject headings:
Sugar growing--Peru--Lambayeque (Dept.)--History--Sources.
Sugar trade--Peru--Lambayeque (Dept.)--History--Sources.
Sugar workers--Peru--Lambayeque (Dept.)--History--Sources.