Question

When is it necessary to document quoted information with a citation?

-it is only required when using print sources
-it is only needed when you use multiple sources
-it is always necessary to document your information
-it is always required,unless special permission is given

Answer 1

It is always necessary to document where you got your information from, so you are not accused of plagiarizing someone else's work. 

Answer 2

It is always necessary to document your information.