International Board for Soil Research and Management, International Water Management Institute, ebrary, Inc, Syers, J. K., Penning de Vries, F. W. T., & Nyamudeza, P. (2001). The sustainable management of vertisols. CABI Pub..
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Chicago-čujuhus (17. p.)
International Board for Soil Research and Management, International Water Management Institute, Inc ebrary, John K. Syers, F. W. T. Penning de Vries, juo Phibion Nyamudeza. The Sustainable Management of Vertisols. Wallingford, Oxon, UK ; New York: CABI Pub., 2001.
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MLA-čujuhus (9. p.)
International Board for Soil Research and Management, et al. The Sustainable Management of Vertisols. CABI Pub., 2001.
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