Columbia subject headings:
Agriculture--Developing countries--Periodicals.
Developing countries--Rural conditions--Periodicals.
Technical assistance--Developing countries--Periodicals.
Harvard subject headings:
Agriculture--Developing countries--Periodicals.
Developing countries--Rural conditions--Periodicals.
Technical assistance--Developing countries--Periodicals.
Princeton subject headings:
Agriculture--Developing countries--Periodicals.
Developing countries--Rural conditions--Periodicals.
Periodicals.
Technical assistance--Developing countries--Periodicals.