MacFall, J. S., Johnson, G. A., & Kramer, P. J. (1991). Comparative water uptake by roots of different ages in seedlings of loblolly pine (Pinus taeda L.). New Phytologist, 119(4), 551. https://doi.org/10.1111/j.1469-8137.1991.tb01047.x
Chicago Style (17th ed.) CitationMacFall, J. S., G. A. Johnson, and P. J. Kramer. "Comparative Water Uptake by Roots of Different Ages in Seedlings of Loblolly Pine (Pinus Taeda L.)." New Phytologist 119, no. 4 (1991): 551. https://doi.org/10.1111/j.1469-8137.1991.tb01047.x.
MLA (9th ed.) CitationMacFall, J. S., et al. "Comparative Water Uptake by Roots of Different Ages in Seedlings of Loblolly Pine (Pinus Taeda L.)." New Phytologist, vol. 119, no. 4, 1991, p. 551, https://doi.org/10.1111/j.1469-8137.1991.tb01047.x.