Wiley, H. W. (1894). Principles and practice of agricultural analysis: A manual for the estimation of soils, fertilizers, and agricultural products. For the use of analysts, teachers, and students of agricultural chemistry. Chemical Pub. Co..
Παραπομπή σε μορφή Chicago (17η εκδ.)Wiley, Harvey Washington. Principles and Practice of Agricultural Analysis: A Manual for the Estimation of Soils, Fertilizers, and Agricultural Products. For the Use of Analysts, Teachers, and Students of Agricultural Chemistry. Easton, Pa.: Chemical Pub. Co., 1894.
Παραπομπή σε μορφή MLA (8th εκδ.)Wiley, Harvey Washington. Principles and Practice of Agricultural Analysis: A Manual for the Estimation of Soils, Fertilizers, and Agricultural Products. For the Use of Analysts, Teachers, and Students of Agricultural Chemistry. Chemical Pub. Co., 1894.