APA (7th ed.) Citation

Critchley, M., & Critchley, E. A. (1978). Dyslexia defined / (by) Macdonald Critchley and Eileen A. Critchley. Heinemann Medical.

Chicago Style (17th ed.) Citation

Critchley, Macdonald, and Eileen A. Critchley. Dyslexia Defined / (by) Macdonald Critchley and Eileen A. Critchley. London: Heinemann Medical, 1978.

MLA (9th ed.) Citation

Critchley, Macdonald, and Eileen A. Critchley. Dyslexia Defined / (by) Macdonald Critchley and Eileen A. Critchley. Heinemann Medical, 1978.

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