ISBN 7811393638 books & textbook
power radio and television facilities, telecommunications security and Regulations (Paperback)
QUAN GUO DIAN LI DIAN XIN GUANG BO DIAN SHI SHE SHI AN QUAN BAO HU GONG ZUO BU JI LIAN XI HUI YI ...
Chinese People s Public Security University Press; /1991-01-01 Paperback
isbn-10: 7811393638 / isbn-13: 9787811393637
