Description
| Item Description: | "September 1993, volume 105, number 503 (fourth of 6 numbers)." |
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| Physical Description: | x, 106 p. : ill. ; 26 cm. |
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| Bibliography: | Includes bibliographical references (p. 105-106). |
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| ISBN: | 0821825658 (acid-free paper) |
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| ISSN: | 0065-9266 ; |
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