(1974). Characteristics, Classification and adaption of soils in selected areas in Sierra Leone, West Africa. Univ. of Illinois.
Chicago-Zitierstil (17. Ausg.)Characteristics, Classification and Adaption of Soils in Selected Areas in Sierra Leone, West Africa. Urbana, Ill: Univ. of Illinois, 1974.
MLA-Zitierstil (9. Ausg.)Characteristics, Classification and Adaption of Soils in Selected Areas in Sierra Leone, West Africa. Univ. of Illinois, 1974.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.