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Published in: Philadelphia ; New York Physical description: xi, 290 pages ; 24 cm

Published in: U.S.A Physical description: vi,149 pages, 19cms

The discipline debate -- Understanding discipline -- Defining terms and clarifying meanings -- The traditional reward-and-punish approach -- Why we can't count...

Published in: Australia ; Belmont, CA Physical description: xxiv, 823 pages : color illustrations ; 28 cm.

Includes index. Contains exercises. Published in: Boston Physical description: xxiv, 823 pages : color illustrations ; 28 cm

Published in: Philadelphia Physical description: 197 pages ; 21 cm

Published in: United Kindgom Physical description: 144p

Physical description: 260p

Published in: New York Physical description: 260 p ; 22 cm.

Includes bibliographical references (pages 165-168). Published in: Downers Grove, Ill. Physical description: 168 pages : illustrations ; 21 cm