Cheek, J. M., Cheek, B., & Rothstein, L. (1989). Conquering shyness: The battle anyone can win. Putnam.
Cita Chicago (17th ed.)Cheek, Jonathan M., Bronwen Cheek, i Larry Rothstein. Conquering Shyness: The Battle Anyone Can Win. New York, N.Y: Putnam, 1989.
Cita MLA (9th ed.)Cheek, Jonathan M., et al. Conquering Shyness: The Battle Anyone Can Win. Putnam, 1989.
Atenció: Aquestes cites poden no estar 100% correctes.