Private sources provided me with a helicopter for the better part of a week.

These published sources do provide a great amount of detail on the subject.

Historical sources provide information about older stages of their construction.

A new source of natural resources can provide a reprieve.

See generally means that a source provides useful background information.

I must stress that these sources cannot provide the solution to our power supply situation.

The following sources provide a sampling of prominent works on this subject matter.

A game was scheduled for October 19 of next year, however, no source provided an outcome.

A few sources, however, list craft artists, describe their work and provide information on how to contact them.

Some sources provide more information on the composition and function of the whole mechanism.