Bilsborrow, R. E., & DeLargy, P. F. Land use, migration and natural resource deterioration: The experience of Guatemala and the Sudan.
Cita Chicago Style (17a ed.)Bilsborrow, Richard E., y Pamela F. DeLargy. Land Use, Migration and Natural Resource Deterioration: The Experience of Guatemala and the Sudan.
Cita MLA (9a ed.)Bilsborrow, Richard E., y Pamela F. DeLargy. Land Use, Migration and Natural Resource Deterioration: The Experience of Guatemala and the Sudan.
警告：這些引文格式不一定是100％准確.