Rachhpal, S. Farm production in Rain fed sub- mountainous punjab. B R Publishing Corporation.
シカゴスタイル引用形Rachhpal, Singh. Farm Production in Rain Fed Sub- Mountainous Punjab. New Delhi: B R Publishing Corporation.
MLA引用形式Rachhpal, Singh. Farm Production in Rain Fed Sub- Mountainous Punjab. B R Publishing Corporation.
警告: この引用は必ずしも正確ではありません.