Singer, Peter 1975 Animal Liberation: A New Ethics for Our Treatment of Animals New York : New York review : distributed by Random House PTBL:A New York review book＝1988 戸田清訳，技術と人間，＝200206 技術と人間
■Singer, Peter 1975 Animal Liberation: A New Ethics for Our Treatment of Animals New York : New York review : distributed by Random House PTBL:A New York review book＝1988 戸田清訳，『動物の解放』，技術と人間，＝200206 技術と人間 〈Ⅱ：59〉