What is the crossword answer for the clue: Ref. book

ENC - a 3 letter word may be the answer you are looking for!

GAZ - a 3 letter word may be the answer you are looking for!

OED - a 3 letter word may be the answer you are looking for!

DICT - a 4 letter word may be the answer you are looking for!

ENCY - a 4 letter word may be the answer you are looking for!

THES - a 4 letter word may be the answer you are looking for!

ENCYC - a 5 letter word may be the answer you are looking for!

ATLAS - a 5 letter word may be the answer you are looking for!

Ref. book

3 Character Answers:

ENC

GAZ

OED

4 Character Answers:

DICT

ENCY

THES

5 Character Answers:

ATLAS

ENCYC