APA (7th ed.) Citation

DF, H., FJ, B., & MB, P. (1990). Measurement of nitrogen fixation by soybean in the field using the ureide and natural N abundance methods. Plant physiology, 93(2), 708. https://doi.org/10.1104/pp.93.2.708

Chicago Style (17th ed.) Citation

DF, Herridge, Bergersen FJ, and Peoples MB. "Measurement of Nitrogen Fixation by Soybean in the Field Using the Ureide and Natural N Abundance Methods." Plant Physiology 93, no. 2 (1990): 708. https://doi.org/10.1104/pp.93.2.708.

MLA (9th ed.) Citation

DF, Herridge, et al. "Measurement of Nitrogen Fixation by Soybean in the Field Using the Ureide and Natural N Abundance Methods." Plant Physiology, vol. 93, no. 2, 1990, p. 708, https://doi.org/10.1104/pp.93.2.708.