Copeland, J. R. M., Abou-Saleh, M. T., & Blazer, D. (2010). Preface to Second Edition. Principles and Practice of Geriatric Psychiatry: Third Edition. https://doi.org/10.1002/9780470669600

Copeland, J. R. M., M. T. Abou-Saleh, and D. Blazer. “Preface to Second Edition.” Principles and Practice of Geriatric Psychiatry: Third Edition, December 2, 2010. https://doi.org/10.1002/9780470669600.

Copeland JRM, Abou-Saleh MT, Blazer D. Preface to Second Edition. Principles and Practice of Geriatric Psychiatry: Third Edition. 2010 Dec 2;

Copeland, J. R. M., et al. “Preface to Second Edition.” Principles and Practice of Geriatric Psychiatry: Third Edition, Dec. 2010. Scopus, doi:10.1002/9780470669600.

Copeland JRM, Abou-Saleh MT, Blazer D. Preface to Second Edition. Principles and Practice of Geriatric Psychiatry: Third Edition. 2010 Dec 2;