The 7 habits of highly effective people : powerful lessons in personal change

MLA

Covey, Stephen R., and Jim Collins. The 7 Habits of Highly Effective People : Powerful Lessons In Personal Change. London: Simon & Schuster, 2013.

APA

Covey, S. R., & Collins, J. (2013). The 7 habits of highly effective people : powerful lessons in personal change. London: Simon & Schuster.

Chicago

Covey, Stephen R., and Jim Collins. The 7 Habits of Highly Effective People: Powerful Lessons In Personal Change. London: Simon & Schuster, 2013.