1. Atlas of United States mortality Publication/Creation: Hyattsville, Md. : National Center for Health Statistics, Centers for Disease Control and Prevention, U.S. Dept. of Health and Human Services, 1996 Resource Type: Map Access & Availability: Loading
2. Organization of Petroleum Exporting Countries (OPEC), 1973 Publication/Creation: [Place of publication not identified] : Maps.com, ©1999 Resource Type: Map Access & Availability: Loading