Ghildyal,B P, & Gupta,R P. (2002). Soil structure problems and management. ICAR.
シカゴスタイル引用形Ghildyal,B P, , Gupta,R P. Soil Structure Problems and Management. New Delhi: ICAR, 2002.
MLA引用形式Ghildyal,B P, , Gupta,R P. Soil Structure Problems and Management. ICAR, 2002.
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