The spirit of the soil, or, An account of nitrogen fixation in the soil by bacteria and of the production of auximones in bacterized peat /

Chicago citation style
Knox, Gordon D. The spirit of the soil, or, An account of nitrogen fixation in the soil by bacteria and of the production of auximones in bacterized peat /. 1916. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/100192413. (Accessed November 20, 2018.)
APA citation style
Knox, Gordon D, (1916) The spirit of the soil, or, An account of nitrogen fixation in the soil by bacteria and of the production of auximones in bacterized peat /. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/100192413
MLA citation style
Knox, Gordon D. Retrieved from the Digital Public Library of America <http://catalog.hathitrust.org/Record/100192413>.
Note: These citations are programmatically generated and may be incomplete.