Title: Ningjin you dian zhi /
Publisher: "Ningjin you dian zhi" bian zuan wei yuan hui,
Year: 2000
Subjects: Postal service China Ningjin Xian (Shandong Sheng) History.; Telecommunication China Ningjin Xian (Shandong Sheng) History.; Ningjin Xian (Shandong Sheng, China) History.