APA

Stephen Covey, . (2013). The 7 Habits of Highly Effective People: Powerful Lessons in Personal Change. New York: RosettaBooks.

Chicago

Stephen Covey, . 2013. The 7 Habits of Highly Effective People: Powerful Lessons in Personal Change. New York: RosettaBooks.

Harvard

Stephen Covey, . (2013). The 7 Habits of Highly Effective People: Powerful Lessons in Personal Change. New York: RosettaBooks.

MLA

Stephen Covey, . The 7 Habits of Highly Effective People: Powerful Lessons in Personal Change. New York: RosettaBooks. 2013.