Citace podle APA (7th ed.)

Covey, S. R. The 7 habits of highly effective people: Restoring the character ethic (Revised edition.).

Citace podle Chicago (17th ed.)

Covey, Stephen R. The 7 Habits of Highly Effective People: Restoring the Character Ethic. Revised edition.

Citace podle MLA (8th ed.)

Covey, Stephen R. The 7 Habits of Highly Effective People: Restoring the Character Ethic. Revised edition.

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