Cite
A technical writing course.
MLA
Gastel, Barbara. “A Technical Writing Course.” BioScience, vol. 39, no. 6, June 1989, pp. 401–02. EBSCOhost, https://doi.org/10.2307/1311070.
APA
Gastel, B. (1989). A technical writing course. BioScience, 39(6), 401–402. https://doi.org/10.2307/1311070
Chicago
Gastel, Barbara. 1989. “A Technical Writing Course.” BioScience 39 (6): 401–2. doi:10.2307/1311070.