Danmarks Pædagogiske Universitetsforlag, 87-7416

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Publisher

DEFF, 978-87-88781

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Publisher

Editorial de la Universidad de Costa Rica, 9977-67

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Organisation for Economic Cooporation and Development, OECD, 92-64

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Sense Publishers, 90-77874

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Universidad Nacional, 9968-9659

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Publisher

Universidad National

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Publisher

Aalborg Universitetsforlag, 87-7307

Denmark

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