| LC control no. | sh 85130375 |
|---|---|
| LC classification | QH344 |
| Topical heading | Sulfur cycle |
| Variant(s) | Sulphur cycle |
| See also | Biogeochemical cycles |
| Found in | McGraw-Hill encyc. sci. tech.: v. 2, p. 217 (sulfur cycle) |
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