Add this copy of Invariant Variational Principles to cart. $96.89, new condition, Sold by Revaluation Books rated 4.0 out of 5 stars, ships from Exeter, DEVON, UNITED KINGDOM, published 1977 by Academic Press.
Add this copy of Invariant Variational Principles to cart. $138.81, new condition, Sold by Bonita rated 4.0 out of 5 stars, ships from Newport Coast, CA, UNITED STATES, published 2012 by Academic Press.
