Genetic recombination.

MLA

“Genetic Recombination.” Nature: New Biology, vol. 243, no. 122, May 1973, p. 1. 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=cmedm&AN=17319067&authtype=sso&custid=ns315887.

APA

Genetic recombination. (1973). Nature: New Biology, 243(122), 1.

Chicago

“Genetic Recombination.” 1973. Nature: New Biology 243 (122): 1. 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=cmedm&AN=17319067&authtype=sso&custid=ns315887.