Woolfe, 1992. Cambridge University Press, 643 p. Document reference Woolfe, J. A., 1992. Sweet potato: an untapped food resource. Cambridge University Press, 643 p.Web http://books.google.com/booksCitation key Woolfe, 1992Datasheets Sweet potato (Ipomoea batatas) by-productsSweet potato (Ipomoea batatas) forageSweet potato (Ipomoea batatas) tubers
