Não informado. (1965). Journal of the Nigerian Institute for Oil Palm Research. Nigerian Institute for Oil Palm Research.
Citação do estilo Chicago (17ª ed.)Não informado. Journal of the Nigerian Institute for Oil Palm Research. Benin City, Nigeria: Nigerian Institute for Oil Palm Research, 1965.
Citação MLA (8ª ed.)Não informado. Journal of the Nigerian Institute for Oil Palm Research. Nigerian Institute for Oil Palm Research, 1965.
警告：這些引文格式不一定是100％准確.