Mbaekwe, E. I., & Isichei, A. O. (2014). Ecology and Biology of Piliostigma Thonningii (Schum.) Milne-Redhead in the Guinea Savanna Zone of Nigeria. Obafemi Awolowo University.
Lua i Stíl Chicago (17ú heag.)Mbaekwe, Ebenezer Ike, agus A. O. Isichei. Ecology and Biology of Piliostigma Thonningii (Schum.) Milne-Redhead in the Guinea Savanna Zone of Nigeria. Obafemi Awolowo University, 2014.
Lua MLA (9ú heag.)Mbaekwe, Ebenezer Ike, agus A. O. Isichei. Ecology and Biology of Piliostigma Thonningii (Schum.) Milne-Redhead in the Guinea Savanna Zone of Nigeria. Obafemi Awolowo University, 2014.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.