Tohutoro APA (7th ed.)

Ehninger, D. (1978). Principles and types of speech communication (8th ed.). Schott foresman.

Tohutoru Kātū Chicago (17th ed.)

Ehninger, Douglas. Principles and Types of Speech Communication. 8th ed. London: Schott foresman, 1978.

Tohutoro MLA (9th ed.)

Ehninger, Douglas. Principles and Types of Speech Communication. 8th ed. Schott foresman, 1978.