Use of Fertilizers and its Effect in Increasing Yield with Particular Attention to Quality and Economy - Part II

Study Week, 10-16 April 1972
Scripta Varia 38
Vatican City, 1978
pp. xci-1423
Study Week, 10-16 April 1972
Scripta Varia 38
Vatican City, 1978
pp. xci-1423