Columbia subject headings:
Agriculture--Research--Developing countries--Management--Congresses.
Agriculture--Research--Developing countries--Planning--Congresses.
Agriculture--Research--Management--Congresses.
Agriculture--Research--Planning--Congresses.
Harvard subject headings:
Agriculture--Research--Developing countries--Management--Congresses.
Agriculture--Research--Developing countries--Planning--Congresses.
Agriculture--Research--Management--Congresses.
Agriculture--Research--Planning--Congresses.
Princeton subject headings:
Agriculture--Research--Developing countries--Management--Congresses.
Agriculture--Research--Developing countries--Planning--Congresses.
Agriculture--Research--Management--Congresses.
Agriculture--Research--Planning--Congresses.