Jon M. Engelhardt Helping Children Understand and Use Nemerals - Boston Allyn and Bacon, Inc 1984 - 229p Jon M. Engelhardt; Robert B. Ashlock & James H. Wiebe: Helping Children Understand and Use Nemerals. Boston. Allyn and Bacon, Inc, 1984. 0-205-0809-X--(372.7ENG) ENGLISH ISBN: 0-205-0809-X Dewey Class. No.: 372.7 / ENG