Isichei, A. O., & Muoghalu, J. I. (2014). The Effects of Tree Canopy Cover on Soil Fertility in a Nigerian Savanna.
Lua i Stíl Chicago (17ú heag.)Isichei, Augustine Onwuegbukiwe, agus Joseph Ikechukwu Muoghalu. The Effects of Tree Canopy Cover on Soil Fertility in a Nigerian Savanna. 2014.
Lua MLA (9ú heag.)Isichei, Augustine Onwuegbukiwe, agus Joseph Ikechukwu Muoghalu. The Effects of Tree Canopy Cover on Soil Fertility in a Nigerian Savanna. 2014.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.