Sponge spicules in swamp soils /
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| Corporate Author: | |
| Format: | Government Document Book |
| Language: | English |
| Published: |
[Washington] :
[Govt. Print. Off],
[1912]
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| Subjects: |
| Item Description: | Bureau of Soils-Circular Number67. Caption title. "Issued July 6, 1912." |
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| Physical Description: | 4 pages ; 24 cm. |