APA ציטוט

Covey, S. Tearing down walls: Covey leadership 5. Covey Leadership library.

Chicago Style (17th ed.) Citation

Covey, Stephen. Tearing Down Walls: Covey Leadership 5. Covey Leadership library.

ציטוט MLA

Covey, Stephen. Tearing Down Walls: Covey Leadership 5. Covey Leadership library.