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		Local cover image Image from Amazon.com	Microbiology for water/wastewater operators [electronic resource] / Frank R. Spellman. by Spellman, Frank R Edition: Rev. reprint. Material type: Text; Format: print ; Literary form: Not fiction Publication details: Lancaster, Pa. : Technomic Pub., c2000 Online resources: Electronic Resources Availability: No items available. Found in Open Library: Save to lists Add to cart (remove)
		Local cover image Image from Amazon.com	Confined space entry [electronic resource] : a guide to compliance / Frank R. Spellman. by Spellman, Frank R Material type: Text; Format: print ; Literary form: Not fiction Publication details: Lancaster, Pa. : Technomic Pub. Co., c1999 Online resources: Electronic Resources Availability: No items available. Found in Open Library: Save to lists Add to cart (remove)

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