Survival of the Fittest.

MLA

“Survival of the Fittest.” TIME Magazine, vol. 91, no. 18, May 1968, pp. 53–54. 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=edb&AN=54040648&authtype=sso&custid=ns315887.

APA

Survival of the Fittest. (1968). TIME Magazine, 91(18), 53–54.

Chicago

“Survival of the Fittest.” 1968. TIME Magazine 91 (18): 53–54. 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=edb&AN=54040648&authtype=sso&custid=ns315887.