Não informado. (1953). Journal of the West African Institute for Oil Palm Research. West African Institute for Oil Palm Research.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Journal of the West African Institute for Oil Palm Research. Benin City, Nigeria: West African Institute for Oil Palm Research, 1953.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Journal of the West African Institute for Oil Palm Research. West African Institute for Oil Palm Research, 1953.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.