APA (7th ed.) Citation

Porter, R. J., & Schoenberg, B. S. (1990). Controlled clinical trials in neurological disease. Kluwer Academic Publishers.

Chicago Style (17th ed.) Citation

Porter, Roger J., and Bruce Stuart Schoenberg. Controlled Clinical Trials in Neurological Disease. Boston: Kluwer Academic Publishers, 1990.

MLA (9th ed.) Citation

Porter, Roger J., and Bruce Stuart Schoenberg. Controlled Clinical Trials in Neurological Disease. Kluwer Academic Publishers, 1990.