Organic manures
Gaur, A.C.
Organic manures A.C. Gaur, S. Neelakantan and K.S. Dargan. - New Delhi ICAR 1995 - vii,159p., 24cm.
631.87 / G23O
Organic manures A.C. Gaur, S. Neelakantan and K.S. Dargan. - New Delhi ICAR 1995 - vii,159p., 24cm.
631.87 / G23O