APA (7th ed.) Citation

L, C., FL, B., KO, B., C, T., HD, S., TW, R., . . . S, H. (2011). Soil microbial responses to elevated CO₂ and O₃ in a nitrogen-aggrading agroecosystem. PloS one, 6(6), e21377. https://doi.org/10.1371/journal.pone.0021377

Chicago Style (17th ed.) Citation

L, Cheng, Booker FL, Burkey KO, Tu C, Shew HD, Rufty TW, Fiscus EL, Deforest JL, and Hu S. "Soil Microbial Responses to Elevated CO₂ and O₃ in a Nitrogen-aggrading Agroecosystem." PloS One 6, no. 6 (2011): e21377. https://doi.org/10.1371/journal.pone.0021377.

MLA (9th ed.) Citation

L, Cheng, et al. "Soil Microbial Responses to Elevated CO₂ and O₃ in a Nitrogen-aggrading Agroecosystem." PloS One, vol. 6, no. 6, 2011, p. e21377, https://doi.org/10.1371/journal.pone.0021377.