Columbia subject headings:
Environmental literature--Africa, Southern--Bibliography.
Environmental policy--Africa, Southern.
Environmental protection--Africa, Southern--Directories.
Harvard subject headings:
Environmental literature--Africa, Southern--Bibliography.
Environmental policy--Africa, Southern
Environmental protection--Africa, Southern--Directories.
Environmental sciences--Africa, Southern--Handbooks, manuals, etc.
Environmental sciences--Africa, Southern--Information services--Directories.
Environmental sciences--Africa, Southern--Societies, etc.--Directories.
Non-governmental organizations--Africa, Southern--Directories.
Princeton subject headings:
Environmental sciences--Africa, Southern--Handbooks, manuals, etc.
Environmental sciences--Africa, Southern--Information services--Directories.
Environmental sciences--Africa, Southern--Societies, etc.--Directories.