Columbia subject headings:
Harvard subject headings:
Desert reclamation--Periodicals.
Desertification--Control--Periodicals.
Desertification--Environmental aspects--Periodicals.
Desertification--Periodicals.
Environmental protection--Periodicals
Reforestation--Periodicals.
Princeton subject headings:
Desertification--Environmental aspects--Periodicals.
Desertification--Periodicals.