1917-

.

Literatuur:

Torrance, A.R.  CHINA: Some notes on censor devices,  CCSG 1977, 5, 1, p 2-4.

Wilde, C.C.J. van der   Between the Wars.  CCSG 1981, 8, 5, p 80-82.

1939-1945

.

Literatuur:

Boddicker, H.   Neues von der Postzensur in China. AGZ Rundbriefe 27 / 1980. P 15-21.

Torrance, A.R.  CHINA: Some notes on censor devices,  CCSG 1977, 5, 1, p 2-4.