Columbia subject headings:
Harvard subject headings:
Ecology--Developing countries--Bibliography--Periodicals.
Ecology--Developing countries--Bibliography.
Natural resources--Developing countries--Bibliography--Periodicals.
Natural resources--Developing countries--Bibliography.
Pollution--Developing countries--Bibliography--Periodicals.
Pollution--Developing countries--Bibliography.
Princeton subject headings:
Ecology--Developing countries--Bibliography--Periodicals.
Natural resources--Developing countries--Bibliography--Periodicals.
Pollution--Environmental aspects--Developing countries--Bibliography--Periodicals.