Cites del registre
Cita APA (7th ed.)
Estados Unidos Department of Agriculture. (1921). Field operations of the bureau of soils. U.S.Department of Agriculture.
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Cita Chicago (17th ed.)
Estados Unidos Department of Agriculture. Field Operations of the Bureau of Soils. U.S.Department of Agriculture, 1921.
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Cita MLA (9th ed.)
Estados Unidos Department of Agriculture. Field Operations of the Bureau of Soils. U.S.Department of Agriculture, 1921.
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No s'ha pogut copiar
Atenció: Aquestes cites poden no estar 100% correctes.