Walter W. Hart1879 · 7 obras en el catálogoObrasTTeacher's manual for Mathematics in daily useTeacher's manual for Mathematics in daily usePProgressive plane geometryProgressive plane geometryMModern first year algebraModern first year algebraMModern second course in algebraModern second course in algebraMMathematics in daily useMathematics in daily useMMathematics in actionMathematics in actionJJunior high school mathematicsJunior high school mathematics