Cita APA

Orlov, D. S. (1995). Humic substances of soils and general theory of humification.

Chicago Edition Citation

Orlov, D S. Humic Substances of Soils and General Theory of Humification. Oxford & IBH Publishing Co. Pvt. Ltd., New Delhi, 1995.

Cita MLA

Orlov, D S. Humic Substances of Soils and General Theory of Humification. 1995.