APA (7th ed.) Citation

Gordon, M. L., Ryan, D. H., & Shilo, T. (1972). Helping the trainable mentally retarded child develop speech and language: A guidebook for parents, teachers and para-professionals. Thomas.

Chicago Style (17th ed.) Citation

Gordon, Michael Lewis, David H. Ryan, and Tamar Shilo. Helping the Trainable Mentally Retarded Child Develop Speech and Language: A Guidebook for Parents, Teachers and Para-professionals. Springfield, Ill.: Thomas, 1972.

MLA (8th ed.) Citation

Gordon, Michael Lewis, et al. Helping the Trainable Mentally Retarded Child Develop Speech and Language: A Guidebook for Parents, Teachers and Para-professionals. Thomas, 1972.