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Lua i Stíl Chicago (17ú heag.)Van der Maas, Heleen M. Towards in Vitro Fertilization, Gametosomatic Cybridization and DNA Transfer in Perennial Ryegrass (Lolium Perenne L.). Wageningen: [s.n.], 1994.
Lua MLA (8ú heag.)Van der Maas, Heleen M. Towards in Vitro Fertilization, Gametosomatic Cybridization and DNA Transfer in Perennial Ryegrass (Lolium Perenne L.). [s.n.], 1994.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.