Manures and fertilizers
Yawalkar, K S
Manures and fertilizers - 2nd ed. - Nagpur: Agri-Horticultural Publishing House, 1967 - viii, 288p.
Science
Agriculture
I 631.8 / K7
Manures and fertilizers - 2nd ed. - Nagpur: Agri-Horticultural Publishing House, 1967 - viii, 288p.
Science
Agriculture
I 631.8 / K7