Cite
Spectrum.
MLA
Keller, W.Eric. “Spectrum.” Environment, vol. 28, no. 5, June 1986, pp. 21–24. EBSCOhost, https://doi.org/10.1080/00139157.1986.9929913.
APA
Keller, W. E. (1986). Spectrum. Environment, 28(5), 21–24. https://doi.org/10.1080/00139157.1986.9929913
Chicago
Keller, W. Eric. 1986. “Spectrum.” Environment 28 (5): 21–24. doi:10.1080/00139157.1986.9929913.