Dent, D., & Young, A. (1981). Soil survey and land evaluation. George Alber and Unwin.
Citación estilo ChicagoDent, David, and Anthony Young. Soil Survey and Land Evaluation. London: George Alber and Unwin, 1981.
Cita MLADent, David, and Anthony Young. Soil Survey and Land Evaluation. George Alber and Unwin, 1981.
Warning: These citations may not always be 100% accurate.