Não informado. Soil and land-use surveys. University of the West Indies, Department of Soil Science.
Chicago-Zitierstil (17. Ausg.)Não informado. Soil and Land-use Surveys. St. Augustine, Trinidad e Tobago: University of the West Indies, Department of Soil Science.
MLA-Zitierstil (8. Ausg.)Não informado. Soil and Land-use Surveys. University of the West Indies, Department of Soil Science.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.