355179 Spellman, F. R. (1999). Confined space entry: A guide to compliance. Lancaster, Pa. : Technomic Pub. Co..
Chicago Style aipamena355179 Spellman, Frank R. Confined Space Entry: A Guide to Compliance. Lancaster, Pa. : Technomic Pub. Co., 1999.
MLA aipamena355179 Spellman, Frank R. Confined Space Entry: A Guide to Compliance. Lancaster, Pa. : Technomic Pub. Co., 1999.
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