(1996). Methods In Soil Biology. Springer.
Lua i Stíl Chicago (17ú heag.)Methods In Soil Biology. Springer, 1996.
Lua MLA (8ú heag.)Methods In Soil Biology. Springer, 1996.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.