Hendriksen , A., & Sneep, J. (1987). Plant breeding perspectives. Centre for Agricultural Publishing and Documentation.
Lua i Stíl Chicago (17ú heag.)Hendriksen , A.J.T., agus J. Sneep. Plant Breeding Perspectives. Wageningen: Centre for Agricultural Publishing and Documentation, 1987.
Lua MLA (9ú heag.)Hendriksen , A.J.T., agus J. Sneep. Plant Breeding Perspectives. Centre for Agricultural Publishing and Documentation, 1987.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.