Tohutoro APA (7th ed.)
Covey Stephen R. (2004). The 7 habits of highly effective people. Pocket Books.
Tohutoru Kātū Chicago (17th ed.)
Covey Stephen R. The 7 Habits of Highly Effective People. New York: Pocket Books, 2004.
Tohutoro MLA (9th ed.)
Covey Stephen R. The 7 Habits of Highly Effective People. Pocket Books, 2004.
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