Weiss, 1983. Tropical Agriculture Series, John Wiley & Sons Incorporated Document reference Weiss, E. A., 1983. Oilseed crops. Tropical Agriculture Series, John Wiley & Sons IncorporatedWeb https://books.google.co.uk/books/about/Oilseed_Crops.html?id=h39lAAAACAAJCitation key Weiss, 1983Datasheets Crambe (Crambe abyssinica)
