CO2 elicits long-term decline in nitrogen fixation

Chicago citation style
Drake, Bert G, Hungate, Bruce A, Hinkle, C. Ross, Johnson, D. W, Dijkstra, P, Stiling, P. D, Hymus, G. J, Ketterer, M. E. CO2 elicits long-term decline in nitrogen fixation. 2004. Retrieved from the Digital Public Library of America, http://collections.si.edu/search/results.htm?q=record_ID%3ASILSRO_32006&repo=DPLA. (Accessed November 18, 2018.)
APA citation style
Drake, Bert G, Hungate, Bruce A, Hinkle, C. Ross, Johnson, D. W, Dijkstra, P, Stiling, P. D, Hymus, G. J, Ketterer, M. E, (2004) CO2 elicits long-term decline in nitrogen fixation. Retrieved from the Digital Public Library of America, http://collections.si.edu/search/results.htm?q=record_ID%3ASILSRO_32006&repo=DPLA
MLA citation style
Drake, Bert G, Hungate, Bruce A, Hinkle, C. Ross, Johnson, D. W, Dijkstra, P, Stiling, P. D, Hymus, G. J, Ketterer, M. E. Retrieved from the Digital Public Library of America <http://collections.si.edu/search/results.htm?q=record_ID%3ASILSRO_32006&repo=DPLA>.
Note: These citations are programmatically generated and may be incomplete.