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1by Wischmeier, W.H., Science and Education Administration, Hyattsville, Md. (USA) eng, Smith, D.D.
Published DecTexto bibliotecaFAO IT -
2by Sperry, J. S., Christman, M. A., Torres Ruiz, José Manuel, Taneda, H., Smith, D. D.
Published 2012artículo bibliotecaIRNAS ES