Title: Wen lu
Description: 1961年是中国共产党历史上著名的调查研究之年,农业六十条石这次全党农村大调查所取得的最大成果.
Subjects: Social surveys, Rural conditions, Agriculture and state, Politics and government, Collectivization of agriculture
Places: China
People: Zedong Mao (1893-1976)