1
Soils as a key component of the critical zone . 3 . Soils and water circulation /
Book
...GNA - Geology - soil sciences...
Table of Contents 
2
Humic substances in the global environment and implications on human health : proceedings of the 6th International Meeting of the International Humic Substances Society, Monopoli (Bari), Italy, September  20-25, 1992
Book