1. Gohil, R N. 1984. Extent of recombination possible in the cultivated leek. Eucarpia 3rd Allium Symposium, Institute for Horticultural Plant Breeding (IVT), Wageningen, The Netherlands, 4–6 September 1984, pp. 99–105.
2. Gohil, R N, and Koul, A K. 1977. The cause of multivalent suppression in Allium ampeloprasum L. Beitr Biol Pflanzen, 53, 473–478.
3. Jones, R N. 1990. Cytogenetics. In: Rabinsowitch, H. D. and Brewster, J. C. (eds), Onions and Allied Crops, vol 1, Botany, Physiology and Genetics, pp. 199–214. CRC Press, Boca Raton FL.
4. Jones, G H, and Vincent, J E. 1994. Meiosis in autopolyploid Crepis capillaris. II. Autotetraploids. Genome, 37, 497–505.
5. Kadry, A E R, and Kamel, S A. 1955. Cytological studies in the two tetraploid species of Allium kurrat Schureint and Allium porrum L. and their hybrid. Svensk Bot Tidskr, 49, 314–324.