APA (7th ed.) Citation
Ehninger, D., Gronbeck, B. E., Monroe, A. H., & Monroe, A. H. (1978). Principles of speech communication (8th.). Scott, Foresman and co..
Chicago Style (17th ed.) Citation
Ehninger, Douglas, Bruce E. Gronbeck, Alan H. Monroe, and Alan Houston Monroe. Principles of Speech Communication. 8th. Dallas, Texas: Scott, Foresman and co., 1978.
MLA (9th ed.) Citation
Ehninger, Douglas, et al. Principles of Speech Communication. 8th. Scott, Foresman and co., 1978.
Warning: These citations may not always be 100% accurate.