Clarson, D. (2004). Biofertilizers for Eco friendly agriculture.
シカゴスタイル引用形Clarson, D. Biofertilizers for Eco Friendly Agriculture. Kottayam, Agro Clinic & Research centre, Poovanthuruthu, 2004.
MLA引用形式Clarson, D. Biofertilizers for Eco Friendly Agriculture. 2004.
警告: この引用は必ずしも正確ではありません.