Cita APA (7th ed.)
Carnegie, D. (2021). The Quick and Easy Way to Effective Speaking. Wilco International.
Cita Chicago (17th ed.)
Carnegie, Dale. The Quick and Easy Way to Effective Speaking. Mumbai: Wilco International, 2021.
Cita MLA (9th ed.)
Carnegie, Dale. The Quick and Easy Way to Effective Speaking. Wilco International, 2021.
Atenció: Aquestes cites poden no estar 100% correctes.