Citation Hunt

The Wikipedia snippet below is not backed by a reliable source. Can you find one?

Click I got this! to go to Wikipedia and fix the snippet, or Next! to see another one. Good luck!

In page Sino-Soviet Non-Aggression Pact:

"

The Republic of China government was fully aware of the Soviet invasion of Xinjiang province, and Soviet troops moving around Xinjiang and Gansu, but was forced to mask these maneuvers to the public as "Japanese propaganda" to avoid an international incident and for continued military supplies from the Soviets.[1]