2

Studies on the Physiological Effects of Humic Acid (Part 1)

Year:
1963
Language:
english
File:
PDF, 1.26 MB
english, 1963
6

Dynamics of iodine, bromine, and chlorine in soil

Year:
1991
Language:
english
File:
PDF, 779 KB
english, 1991
8

Studies on the physiological effect of humic acid

Year:
1968
Language:
english
File:
PDF, 717 KB
english, 1968