Nolo: When a Dog Is a Lemon - An article by Mary Randolph on what to do if you get a sick animal from a pet store and why the odds of doing so are high. www.nolo.com/encyclopedia/articles/np/nn179.html
Pennsylvania: Dog Purchaser Protection Act - The state's puppy lemon law, with information and FAQs for veterinarians and dog purchasers. www.attorneygeneral.gov/pei/dog/index.cfm
Sick Puppies: Disclosures and Lemon Laws - What to do if you buy a sick puppy and links to many states' lemon laws. consumerinfo.about.com/library/weekly/aa062500a.htm?once=true&