Van Zyl, 1973. Farming in South Africa, 48 (12): 4-7, 10 Document reference Van Zyl, L. G., 1973. Lupins in the south-eastern Transvaal Highveld. Farming in South Africa, 48 (12): 4-7, 10Web https://eurekamag.com/research/000/131/000131470.phpCitation key Van Zyl, 1973Datasheets Blue lupin (Lupinus angustifolius) forageBlue lupin (Lupinus angustifolius) seeds
