But readers may sometimes wish for a more authoritative guide.

See if you can pick up on a new trend or become an authoritative guide on something people really want to know about.

The Register is the authoritative guide to the state's significant historical and archeological resources.

No chemistry department can afford to purchase software without reference to this authoritative guide.

This led to the publication in 1961 of her authoritative guide, Intent Upon Reading.

Beneficiaries use the handbook as an authoritative guide.

Piper compiled the first authoritative guides to flora in the northwestern United States.

The U.S. Government Bookstore is the authoritative guide for prices.

Congress did not respond until 1942, when it passed a joint resolution to "provide an authoritative guide to those civilians who desire to use the flag correctly."

Normally a religion has some sacred or holy texts, which serve as an authoritative guide to interpreting actions and ideas as either good or bad.