. "Animal Liberation: A New Ethics for Our Treatment of Animals is a 1975 book by Australian philosopher Peter Singer. It is widely considered within the animal liberation movement to be the founding philosophical statement of its ideas. Singer himself rejected the use of the theoretical framework of rights when it comes to human and nonhuman animals."@en . "311"^^ . . "978-0-06-171130-5 (2009 edition)" . . . "Animal Liberation"@en .