APA (7th ed.) Citation
Olk, D., & Cassman, K. (1995). Reduction of potassium fixation by 2 humic-acid fractions in vermiculitic soils. Wiley.
Chicago Style (17th ed.) Citation
Olk, D.C, and K.G Cassman. Reduction of Potassium Fixation by 2 Humic-acid Fractions in Vermiculitic Soils. Wiley, 1995.
MLA (9th ed.) Citation
Olk, D.C, and K.G Cassman. Reduction of Potassium Fixation by 2 Humic-acid Fractions in Vermiculitic Soils. Wiley, 1995.
Warning: These citations may not always be 100% accurate.