Venkateswaran, P. A. (1961). Agriculture in south India. Directorate of extension.
シカゴスタイル引用形Venkateswaran, P A. Agriculture in South India. Newdelhi: Directorate of extension, 1961.
MLA引用形式Venkateswaran, P A. Agriculture in South India. Directorate of extension, 1961.
警告: この引用は必ずしも正確ではありません.