APA-referens (7:e uppl.)

Popirny, M. A., Nikolov, O. T., & Skrylnik, E. V. (2016). Effect of soil tillage intensity on the composition, physical and chemical properties of the second fraction of humic acids extracted from the typical black soil. Біофізичний вісник, 1(35), 34-45.

Chicago-referens (17:e uppl.)

Popirny, M. A., O. T. Nikolov, och E. V. Skrylnik. "Effect of Soil Tillage Intensity on the Composition, Physical and Chemical Properties of the Second Fraction of Humic Acids Extracted from the Typical Black Soil." Біофізичний вісник 1, no. 35 (2016): 34-45.

MLA-referens (9:e uppl.)

Popirny, M. A., et al. "Effect of Soil Tillage Intensity on the Composition, Physical and Chemical Properties of the Second Fraction of Humic Acids Extracted from the Typical Black Soil." Біофізичний вісник, vol. 1, no. 35, 2016, pp. 34-45.

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