Cite
EPA goes after 13 additional sources of urban air toxics.
MLA
Harrigan, Kate. “EPA Goes after 13 Additional Sources of Urban Air Toxics.” Pollution Engineering, vol. 31, no. 9, Sept. 1999, p. 9. 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=asx&AN=2348301&authtype=sso&custid=ns315887.
APA
Harrigan, K. (1999). EPA goes after 13 additional sources of urban air toxics. Pollution Engineering, 31(9), 9.
Chicago
Harrigan, Kate. 1999. “EPA Goes after 13 Additional Sources of Urban Air Toxics.” Pollution Engineering 31 (9): 9. 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=asx&AN=2348301&authtype=sso&custid=ns315887.