Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (8a ed.)

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