The Nitrogen Riddle.

MLA

Krupenikov, Igori Arcadie, et al. “The Nitrogen Riddle.” Black Earth, Jan. 2011, pp. 51–56. EBSCOhost, https://doi.org/10.1007/978-94-007-0159-5_8.

APA

Krupenikov, I. A., Boincean, B. P., & Dent, D. (2011). The Nitrogen Riddle. Black Earth, 51–56. https://doi.org/10.1007/978-94-007-0159-5_8

Chicago

Krupenikov, Igori Arcadie, Boris P Boincean, and David Dent. 2011. “The Nitrogen Riddle.” Black Earth, January, 51–56. doi:10.1007/978-94-007-0159-5_8.