Humus chemistry

Soils of the eastern United States and their use--

Secrets of fertile soils

The formation of vegetable mould, through the action of worms

The formation of vegetable mould

The Formation of Vegetable Mould, Through the Action of Worms with Observations on Their Habits ...

Building Soils for Better Crops

Soil Organic Matter (Developments in Soil Science Ser)

Soil organic matter.

Chemistry of Soil Organic Matter

Chemistry of soil organic matter.

Yarding-method and slash-treatment effects on compaction, humus, and variation in plantation soils

Chemicals, humus, and the soil

Healthy soils, sick soils

La décomposition des matières organiques et les formes d'humus dans leurs rapports avec l'agriculture

Future of Soil Carbon

Humic substances in terrestrial ecosystems

Plant litter

The war in the soil.

Microorganisms and organic matter of soils.

Soil Organic Matter in Temperate AgroecosystemsLong Term Experiments in North America

Humic, fulvic, and microbial balance

Kolmas kansallinen humusseminaari

Soil organic matter

Evaluation of Soil Organic Matter Models

Pay Dirt

Humus

Building soils for better crops

Guminovye veshchestva v biosfere

Soil Mineral -- Microbe-Organic Interactions

Geotechnics of Organic Soils and Peat

Methods to study litter decomposition

Organic matter management in forest tree nurseries

Darwin on Earthworms

Micromorphological analysis of soils

Managing Organic Matter in Tropical Soils : Scope and Limitations

Studien über die natürlichen Humusformen und deren Einwirkung auf Vegetation und Boden

Les sols forestiers

The formation of vegetable mould, through the action of worms

The formation of vegetable mould through the action of worms