APA Citation

Yorkey, R. C., & Yorkey, R. C. (1984). New intercom (2. edición.). Boston, Massachusetts: Heinle & Heinle.

Chicago Style Citation

Yorkey, Richard C., and Richard C. Yorkey. New Intercom. 2. edición. Boston, Massachusetts: Heinle & Heinle, 1984.

MLA Citation

Yorkey, Richard C., and Richard C. Yorkey. New Intercom. 2. edición. Boston, Massachusetts: Heinle & Heinle, 1984.

Warning: These citations may not always be 100% accurate.