Tigao jingti hanwei lingkong. Zhanbei jiaoyu guatu zhisan

'Heighten our vigilance to protect our national airspace. Third battle preparedness education poster'.

Bibliographic Details
Institution:International Institute of Social History
Format: IMAGE
Published: 1962, June
Subjects:
Online Access:http://hdl.handle.net/10622/C8481235-F9AA-4EEE-80C2-22816DA6D131
Description
Summary:'Heighten our vigilance to protect our national airspace. Third battle preparedness education poster'.
Published:1962, June