Columbia subject headings:
Callao (Peru : Province)--Statistics--Periodicals.
Lima (Peru : Department)--Statistics--Periodicals.
Harvard subject headings:
Callao (Peru : Province)--Statistics--Periodicals.
Lima (Peru : Province)--Statistics--Periodicals.
Princeton subject headings:
Callao (Peru : Province)--Statistics--Periodicals.
Lima (Peru : Province)--Statistics--Periodicals.