A technical book that explains the reasons parents get angry, how that affects children, and gives suggestions on how to get control of angry emotions. Lots of data to back up their ideas. For more practical ideas on how to handle parents and kids anger I'd suggest two books by Elizabeth Pantley - Kid Cooperation (How to Stop Yelling, Nagging and Pleading) and Perfect Parenting Dictionary of 1000 Parenting Tips with entries such as: Child's Anger, Parents Anger, Disrespect, Expressions of Hate, Fighting.