Columbia subject headings:
Harvard subject headings:
Occultism--Africa, West--Congresses.
Occultism--Religious aspects--Congresses.
Parapsychology--Africa, West--Congresses.
Princeton subject headings:
Occultism--Africa, West--Congresses.
Occultism--Religious aspects--Congresses.
Parapsychology--Africa, West--Congresses.