Answer:

indices

Answer	Crossword Clue
INDICES	Back-of-the-book conveniences
INDICES	Text guides
INDICES	Dow and NASDAQ

INDICES	Statistical measures
INDICES	Dow Jones stats
INDICES	Alphabetical lists.
INDICES	Lists in reference books.
INDICES	Reference pages.
INDICES	Textbook adjuncts
INDICES	Catalogues
INDICES	Alphabetical listings

INDICES	Cookbooks have them
INDICES	Book lists
INDICES	The Dow and the Nikkei 225
INDICES	Back-of-the-book readings
INDICES	Market measurements