  1990 - Understanding the World of Work (Hardcover) → Paperback ISBN-13: 9780340455296 ISBN-10: 0340455292 Genres: Business & Money, Children's Books ?  1984 - Social Industrial and Environmental Studies (Paperback) ISBN-13: 9780713108699 ISBN-10: 071310869X Genres: Children's Books, Science & Math ?  |
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