Proceedings ; national technical conference, March 10-12, 1968, Sheraton Hotel, Philadelphia, Pennsylvania.
| Corporate Author: | |
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| Format: | Book |
| Language: | English |
| Published: |
Chicago,
[publisher not identified] ;
[1968]
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| Subjects: |
| Physical Description: | 115 pages : illustrations, portraits ; 28 cm. |
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| Bibliography: | Includes bibliographies. |