(1999). Ready-to-use violence prevention skills: Lessons and activities for elementary students. West Nyack, N.Y.: The Center.
استشهاد بنمط شيكاغوReady-to-use Violence Prevention Skills: Lessons and Activities for Elementary Students. West Nyack, N.Y.: The Center, 1999.
MLA استشهادReady-to-use Violence Prevention Skills: Lessons and Activities for Elementary Students. West Nyack, N.Y.: The Center, 1999.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.