Spellman, F. R. (1997). Dewatering biosolids. Technomic.
Tohutoru Kātū Chicago (17th ed.)Spellman, Frank R. Dewatering Biosolids. Lancaster: Technomic, 1997.
Tohutoro MLA (9th ed.)Spellman, Frank R. Dewatering Biosolids. Technomic, 1997.
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