field survey

Wikidata

https://www.wikidata.org/wiki/Q1402508

Study the battle spirit of the Red Army during the Long March...

Study the battle spirit of the Red Army during the Long March, conquer nature, build up our nation (1953, August)

Struggle to realize the general line!

Struggle to realize the general line! (1958, September)

Earthquake destruction and the reduction of disaster popularization charts

Earthquake destruction and the reduction of disaster popularization charts (1992, April)

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