All information is clearly identified and easy to find within the source

reliable or credible

A document if it is clearly identified as well as it is quite easy to find it with the source, is said to be credible and reliable. If you want to find more then you can study the library Science and information science.

Its an important part of Library Science, as well as information science.

Explanation:

A document can be reliable only if it provides the correct answer, and can be found easily. If this is not the case then that document cannot be considered as being reliable or credible. This is the first thing which should be kept in mind while collecting the documents.