Willan, R. L. (1985). A guide to forest seed handling: With special reference to the Tropics. FAO.
Lua i Stíl Chicago (17ú heag.)Willan, R. L. A Guide to Forest Seed Handling: With Special Reference to the Tropics. Rome: FAO, 1985.
Lua MLA (9ú heag.)Willan, R. L. A Guide to Forest Seed Handling: With Special Reference to the Tropics. FAO, 1985.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.