Não informado. Soil and land-use surveys. University of the West Indies, Department of Soil Science.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিNão informado. Soil and Land-use Surveys. St. Augustine, Trinidad e Tobago: University of the West Indies, Department of Soil Science.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিNão informado. Soil and Land-use Surveys. University of the West Indies, Department of Soil Science.
সতর্কবাণী: সাইটেশন সবসময় 100% নির্ভুল হতে পারে না.