Cita APA (7a ed.)

Orlov, D., Kothekar, V., & Tan, K. H. (1986). Humus acids of soils. Balkema.

Cita Chicago Style (17a ed.)

Orlov, D.S, V.S Kothekar, y Kim H. Tan. Humus Acids of Soils. Rotterdam: Balkema, 1986.

Cita MLA (9a ed.)

Orlov, D.S, et al. Humus Acids of Soils. Balkema, 1986.