Cite
A two-subunit bacterial [sigma]-factor activates transcription in Bacillus subtilis
MLA
MacLellan, Shawn R., et al. “A Two-Subunit Bacterial [Sigma]-Factor Activates Transcription in Bacillus Subtilis.” Proceedings of the National Academy of Sciences of the United States, vol. 106, no. 50, Dec. 2009, p. 21323. 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=edsggo&AN=edsgcl.216682362&authtype=sso&custid=ns315887.
APA
MacLellan, S. R., Guariglia-Oropeza, V., Gaballa, A., & Helmann, J. D. (2009). A two-subunit bacterial [sigma]-factor activates transcription in Bacillus subtilis. Proceedings of the National Academy of Sciences of the United States, 106(50), 21323.
Chicago
MacLellan, Shawn R., Veronica Guariglia-Oropeza, Ahmed Gaballa, and John D. Helmann. 2009. “A Two-Subunit Bacterial [Sigma]-Factor Activates Transcription in Bacillus Subtilis.” Proceedings of the National Academy of Sciences of the United States 106 (50): 21323. 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=edsggo&AN=edsgcl.216682362&authtype=sso&custid=ns315887.