Yes, REFERENCES is a Scrabble word!

Letter values in Scrabble US: R 1, E 1, F 4, E 1, R 1, E 1, N 1, C 3, E 1, S 1.

Is it a valid word?

REFERENCES is a valid word in the official Scrabble dictionary (US), the UK Scrabble Dictionary and Words with Friends (ENABLE).

a remark that calls attention to something or someone
a short note recognizing a source of information or of a quoted passage
an indicator that orients you generally
a book to which you can refer for authoritative facts
a formal recommendation by a former employer to a potential future employer describing the person's qualifications and dependability
the most direct or specific meaning of a word or expression; the class of objects that an expression refers to
the act of referring or consulting
a publication (or a passage from a publication) that is referred to
(computer science) the code that identifies where a piece of information is stored
the relation between a word or phrase and the object or idea it refers to

Also: reference point, point of reference, reference book, reference work, book of facts, character reference, computer address.