Nweke. Yam in West Africa. Michigan State University Press.
芝加哥风格引文Nweke. Yam in West Africa. Michigan State University Press.
MLA引文Nweke. Yam in West Africa. Michigan State University Press.
警告：这些引文格式不一定是100％准确.
APA引文
Nweke. Yam in West Africa. Michigan State University Press.
芝加哥风格引文Nweke. Yam in West Africa. Michigan State University Press.
MLA引文Nweke. Yam in West Africa. Michigan State University Press.