Cite
The "top 50": a perspective on the BMJ drawn from the Science Citation Index.
MLA
Dixon, Bernard. “The ‘Top 50’: A Perspective on the BMJ Drawn from the Science Citation Index.” BMJ: British Medical Journal (International Edition), vol. 301, no. 6754, Oct. 1990, p. 747. EBSCOhost, https://doi.org/10.1136/bmj.301.6754.747.
APA
Dixon, B. (1990). The “top 50”: a perspective on the BMJ drawn from the Science Citation Index. BMJ: British Medical Journal (International Edition), 301(6754), 747. https://doi.org/10.1136/bmj.301.6754.747
Chicago
Dixon, Bernard. 1990. “The ‘Top 50’: A Perspective on the BMJ Drawn from the Science Citation Index.” BMJ: British Medical Journal (International Edition) 301 (6754): 747. doi:10.1136/bmj.301.6754.747.