APA (7th ed.) Citation

Orlov, D. S. (1985). Humus acids of soils. A.A.Balkema.

Chicago Style (17th ed.) Citation

Orlov, D. S. Humus Acids of Soils. Rotterdam: A.A.Balkema, 1985.

MLA (9th ed.) Citation

Orlov, D. S. Humus Acids of Soils. A.A.Balkema, 1985.

Warning: These citations may not always be 100% accurate.