Source
PLA patients report to Mao in 1968
黑龙江部队医院病房, September 5, 1968 Source
Sketches of Sent Down Youth Life from 1970
All sketches are by 尚祖玉 from 龙门农场 in Heilongjiang (黑龙江省五大连池市境内) Source
An anesthesiologist at work in 1971
Qiqihar, Heilongjiang Source
Sent down youth vote in 1974
Source