Author AA. Title of article: Capital letter also for subtitle. Abbreviated Title of Journal. Year; Volume number(Issue number): page numbers.
Use the PubMed NLM Catalog Journal Search to find out the abbreviation for your journal title.
Brown CJ, Flood KL. Mobility limitation in the older patient: A clinical review. JAMA. 2013;310(11):1168-1177.
Sheng A, Dalziel P, Liteplo A, Fagenholz P, Noble V. Focused assessment with sonography in trauma and abdominal computed tomography utilization in adult trauma patients: Trends over the last decade. Emerg Med Int. 2013;2013:678380.