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The four color problem: assaults and conquest.
| Main Author: | |
|---|---|
| Format: | Printed Book |
| Language: | English |
| Published: |
New York:
Dover Publications,
1986.
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| Subjects: |
| Physical Description: | v, 217p. |
|---|
| Main Author: | |
|---|---|
| Format: | Printed Book |
| Language: | English |
| Published: |
New York:
Dover Publications,
1986.
|
| Subjects: |
| Physical Description: | v, 217p. |
|---|