Piper, C. S. (1950). Soil and plant analysis: A laboratory manual of methods for the examination of soils and the determination of the inorganic constituents of plants. Univ. of Adelaide.
Cita Chicago Style (17a ed.)Piper, C. S. Soil and Plant Analysis: A Laboratory Manual of Methods for the Examination of Soils and the Determination of the Inorganic Constituents of Plants. Adelaide: Univ. of Adelaide, 1950.
Cita MLA (8a ed.)Piper, C. S. Soil and Plant Analysis: A Laboratory Manual of Methods for the Examination of Soils and the Determination of the Inorganic Constituents of Plants. Univ. of Adelaide, 1950.
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