APA Citatie

Stephen R Covey & Sadasivan M P. (2012). 8 th habit: From effectiveness to greatness. D C Books.

Chicago Style citaat

Stephen R Covey en Sadasivan M P. 8 Th Habit: From Effectiveness to Greatness. Kottayam: D C Books, 2012.

MLA citatie

Stephen R Covey en Sadasivan M P. 8 Th Habit: From Effectiveness to Greatness. D C Books, 2012.