Khanna, S. S. (1979). Practical manual for inductory cources in soils. Haryana Agricultural University.
シカゴスタイル引用形Khanna, S S. Practical Manual for Inductory Cources in Soils. Haryana: Haryana Agricultural University, 1979.
MLA引用形式Khanna, S S. Practical Manual for Inductory Cources in Soils. Haryana Agricultural University, 1979.
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