Antzeko izenburuak: How to Win Friends and Influence People /
Gaia: Philosophy.
- Mass communication theory : foundations, ferment, and future /
- Revolution of conscience : Martin Luther King, Jr., and the philosophy of nonviolence /
- The philosophical journey : an interactive approach /
- What I learned in school : reflections on race, child development, and school reform /
- The philosophical journey : an interactive approach /
- A first look at communication theory /