Cita APA (7th ed.)

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 (17th 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 (8th 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.

Atenció: Aquestes cites poden no estar 100% correctes.