TITLE: reference for Noether's theorem
QUESTION [18 upvotes]: What is a good reference for a geometric version of Noether's theorem about Lagrangians, symmetries and conserved currents?

REPLY [5 votes]: The simplest, most elegant and strongest version I know is, by far, the one in Aderson's book  (see page 106 and ss.) He deals directly with the variational equation, with no explicit mention to the lagrangian.
(By the way, it is surprising why this statement is not mentioned in Schwarzbachs' book!)