Cite
A Decalogue for Teaching Mathematics. Fastback Series 309.
MLA
Phi Delta Kappa, Bloomington, IN., et al. A Decalogue for Teaching Mathematics. Fastback Series 309. Jan. 1990. 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=ED327415&authtype=sso&custid=ns315887.
APA
Phi Delta Kappa, B. I., DeBower, C. E., & DeBower, K. L. (1990). A Decalogue for Teaching Mathematics. Fastback Series 309.
Chicago
Phi Delta Kappa, Bloomington, IN., Carrol E. DeBower, and Kari L. DeBower. 1990. “A Decalogue for Teaching Mathematics. Fastback Series 309,” January. 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=ED327415&authtype=sso&custid=ns315887.