Sarett, L. R., & Foster, W. T. (1936). Basic principles of speech. Houghton Mifflin company.
Cita Chicago (17th ed.)Sarett, Lew R, i William Trufant Foster. Basic Principles of Speech. Boston: Houghton Mifflin company, 1936.
Cita MLA (9th ed.)Sarett, Lew R, i William Trufant Foster. Basic Principles of Speech. Houghton Mifflin company, 1936.
Atenció: Aquestes cites poden no estar 100% correctes.