Nyambok, I. O., & Davies, T. C. (1993). Geosciences and the environment. Nairobi Univ. Press.
Lua i Stíl Chicago (17ú heag.)Nyambok, Isaac O., agus Theophilus C. Davies. Geosciences and the Environment. Nairobi: Nairobi Univ. Press, 1993.
Lua MLA (9ú heag.)Nyambok, Isaac O., agus Theophilus C. Davies. Geosciences and the Environment. Nairobi Univ. Press, 1993.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.