APA ציטוט

O'Neil, J. J., & Oyer, H. J. (1961). Visual communication for the hard of hearing; history, research, mehtods. Prentice - Hall.

Chicago Style (17th ed.) Citation

O'Neil, John Joseph, and Herbert J. Oyer. Visual Communication for the Hard of Hearing; History, Research, Mehtods. Englewood Cliff, N.J: Prentice - Hall, 1961.

ציטוט MLA

O'Neil, John Joseph, and Herbert J. Oyer. Visual Communication for the Hard of Hearing; History, Research, Mehtods. Prentice - Hall, 1961.