Poffenbarger, H. J., Barker, D. W., Helmers, M. J., Miguez, F. E., Olk, D. C., Sawyer, J. E., . . . Castellano, M. J. (2017). Maximum soil organic carbon storage in Midwest U.S. cropping systems when crops are optimally nitrogen-fertilized. PloS one, 12(3), e0172293. https://doi.org/10.1371/journal.pone.0172293
Chicago Style (17th ed.) CitationPoffenbarger, Hanna J., Daniel W. Barker, Matthew J. Helmers, Fernando E. Miguez, Daniel C. Olk, John E. Sawyer, Johan Six, and Michael J. Castellano. "Maximum Soil Organic Carbon Storage in Midwest U.S. Cropping Systems When Crops Are Optimally Nitrogen-fertilized." PloS One 12, no. 3 (2017): e0172293. https://doi.org/10.1371/journal.pone.0172293.
MLA (9th ed.) CitationPoffenbarger, Hanna J., et al. "Maximum Soil Organic Carbon Storage in Midwest U.S. Cropping Systems When Crops Are Optimally Nitrogen-fertilized." PloS One, vol. 12, no. 3, 2017, p. e0172293, https://doi.org/10.1371/journal.pone.0172293.