Cite
X-Ray Hardness Variations as an Internal/External Shock Diagnostic
MLA
Butler, Nathaniel R., and Daniel Kocevski. “X-Ray Hardness Variations as an Internal/External Shock Diagnostic.” The Astrophysical Journal, vol. 668, no. 1, Oct. 2007, pp. 400–08. EBSCOhost, widgets.ebscohost.com/prod/customlink/proxify/proxify.php?count=1&encode=0&proxy=&find_1=&replace_1=&target=https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&scope=site&db=edo&AN=ejs18566501&authtype=sso&custid=ns315887.
APA
Butler, N. R., & Kocevski, D. (2007). X-Ray Hardness Variations as an Internal/External Shock Diagnostic. The Astrophysical Journal, 668(1), 400–408.
Chicago
Butler, Nathaniel R., and Daniel Kocevski. 2007. “X-Ray Hardness Variations as an Internal/External Shock Diagnostic.” The Astrophysical Journal 668 (1): 400–408. http://widgets.ebscohost.com/prod/customlink/proxify/proxify.php?count=1&encode=0&proxy=&find_1=&replace_1=&target=https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&scope=site&db=edo&AN=ejs18566501&authtype=sso&custid=ns315887.