These are just a few books I've run across. I do not own them, so can't provide any first hand
knowledge, but thought they might be of interest to others. And if you know of any good books
on this subject, please add it:
Cancer and Your Pet: The Complete Guide to the Latest Research, Treatments, and Options (Paperback)
http://www.amazon.com/Cancer-Your-Pet-Complete-Treatments/dp/1931868867/ref=pd_sim_b_7--
The Natural Vet's Guide to Preventing and Treating Cancer in Dogs
http://www.amazon.com/Natural-Guide-Preventing-Treating-Cancer/dp/1577315197/ref=sr_1_1?ie=UTF8&s=books&qid=1224203002&sr=1-1--
The Nature of Animal Healing : The Definitive Holistic Medicine Guide to Caring for Your Dog and Cat
http://www.amazon.com/Nature-Animal-Healing-Definitive-Holistic/dp/0345439198/ref=pd_sim_b_3--