(1991). Booker tropical soil manual: A hand book for soil survey and agricultural land evaluation in the tropics and Subtropics. New York: Longman Scientific & Technical.
Citación estilo ChicagoBooker Tropical Soil Manual: A Hand Book for Soil Survey and Agricultural Land Evaluation in the Tropics and Subtropics. New York: Longman Scientific & Technical, 1991.
Cita MLABooker Tropical Soil Manual: A Hand Book for Soil Survey and Agricultural Land Evaluation in the Tropics and Subtropics. New York: Longman Scientific & Technical, 1991.
Cảnh báo: Các trích dẫn này có thể không phải lúc nào cũng chính xác 100%.