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Human activity systems: A systems approach /
Main Author: | |
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Format: | Printed Book |
Language: | English |
Published: |
Open University Press,
1975.
|
Physical Description: | 47 p. |
---|
Main Author: | |
---|---|
Format: | Printed Book |
Language: | English |
Published: |
Open University Press,
1975.
|
Physical Description: | 47 p. |
---|