United States. Bureau of Chemistry and Soils. (1937). Trace elements in soils from erosion experiment stations, with supplementary data on other soils. [s.n.].
Chicago Style (17th ed.) CitationUnited States. Bureau of Chemistry and Soils. Trace Elements in Soils from Erosion Experiment Stations, with Supplementary Data on Other Soils. [Washington]: [s.n.], 1937.
MLA (9th ed.) CitationUnited States. Bureau of Chemistry and Soils. Trace Elements in Soils from Erosion Experiment Stations, with Supplementary Data on Other Soils. [s.n.], 1937.
Warning: These citations may not always be 100% accurate.