51. Vertical intensity of the earth's magnetic field, epoch 1985.0 Author/Creator: United States. Defense Mapping Agency. Hydrographic/Topographic Center Publication/Creation: Washington, D.C. : The Center : [DMA, Combat Support Center, DOA, distributor], 1985 Resource Type: Map Edition: 7th ed., Dec. 2, 1985. Access & Availability: Loading
52. Weinbau im Mittelalter Author/Creator: Weiter-Matysiak, Barbara Publication/Creation: Köln : Rheinland-Verlag, 1985 Resource Type: Map Access & Availability: Loading
53. Zhongguo ren kou di tu ji 中国人口地图集 Author/Creator: China. Guo wu yuan. Ren kou pu cha ban gong shiChina. 国务院. 人口普查办公室 Publication/Creation: [Peking] : Zhongguo tong ji chu ban she, 1987 Resource Type: Map Access & Availability: Loading