how are vector spaces viewed as universal algebras? [closed]

Hey I have this question from Universal Algebra texts where you can see groups, rings, lattices and other structures as Universal Algebras, but I still don't have clear how vector spaces can be viewed in this way (taking into account that all the operations in an Universal Algebra are internal: i.e, from $A^n$ to $A$)

Thanks

Dan

-
This would fit better on math.stackexchange.com –  Andrew Stacey Apr 3 '11 at 21:09
Very briefly, there are two approaches. One is to fix a ground field and introduce one unary operation for each scalar. The other is to work in a two-sorted theory where one of the sorts is to be interpreted as a ground field and the other is to be interpreted as a vector space over the ground field. If this is not enough of a hint, try over at math.stackexchange.com as Andrew suggests. –  Todd Trimble Apr 3 '11 at 21:23