Cita APA (7a ed.)

Sarett, L. R., & Foster, W. T. (1936). Basic principles of speech. Houghton Mifflin company.

Cita Chicago Style (17a ed.)

Sarett, Lew R, y William Trufant Foster. Basic Principles of Speech. Boston: Houghton Mifflin company, 1936.

Cita MLA (9a ed.)

Sarett, Lew R, y William Trufant Foster. Basic Principles of Speech. Houghton Mifflin company, 1936.