Estados Unidos. Department of Agriculture. Agricultural Research Service. Soil and Water Conservation Research Division & Tennessee Valley Authority. Office of Agricultural and Chemical Development. (1964). Superphosphate: Its history, chemistry and manufacture. Department of Agriculture ; TVA.
Cita Chicago Style (17a ed.)Estados Unidos. Department of Agriculture. Agricultural Research Service. Soil and Water Conservation Research Division y Tennessee Valley Authority. Office of Agricultural and Chemical Development. Superphosphate: Its History, Chemistry and Manufacture. Washington: Department of Agriculture ; TVA, 1964.
Cita MLA (8a ed.)Estados Unidos. Department of Agriculture. Agricultural Research Service. Soil and Water Conservation Research Division y Tennessee Valley Authority. Office of Agricultural and Chemical Development. Superphosphate: Its History, Chemistry and Manufacture. Department of Agriculture ; TVA, 1964.