Cite
Is the Proof in the Practice?
MLA
Barnard, Tony. “Is the Proof in the Practice?” Mathematics in School, vol. 18, no. 4, Jan. 1989, pp. 9–13. 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=eric&AN=EJ403079&authtype=sso&custid=ns315887.
APA
Barnard, T. (1989). Is the Proof in the Practice? Mathematics in School, 18(4), 9–13.
Chicago
Barnard, Tony. 1989. “Is the Proof in the Practice?” Mathematics in School 18 (4): 9–13. 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=eric&AN=EJ403079&authtype=sso&custid=ns315887.