I'd recommend Samir Okasha's "Philosophy of Science: A Very Short Introduction" (one of those Oxford University Press "Very short introduction" books that are o

I'd recommend Samir Okasha's "Philosophy of Science: A Very Short Introduction" (one of those Oxford University Press "Very short introduction" books that are only around 100 pages) as he has a short section on the Science Wars, and then if you are interested in more, James Robert Brown's "Who Rules in Science?: An Opinionated Guide to the Wars". Both Okasha and Brown are philosophers of science themselves, and do cover both sides, but they are are scientific realists in that they believe that scientific models do reflect to some degree the reality of the universe.