Bloomberg businessweek, viewed online April 29, 2013: Armstrong DLW AG page (Armstrong DLW AG engages in flooring manufacturing in Europe; based in Bietigheim-Bissingen, Germany. As of August 19, 1998, Armstrong DLW AG is a subsidiary of Armstrong World Industries, Inc.)
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GRIL NACO contribution (n.d.)
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Inspiring interiors from Armstrong 1950s, 1998: CIP galley (Armstrong World Industries, Inc. was known in the 1950s as Armstrong Cork Company)
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Its Annual report, 1993: t.p. (Armstrong; Armstrong World Industries)
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Library of Congress Authorities online (2002-) http://id.loc.gov/authorities/names/n83169682
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Steckler, K.D. Calculations of wall fire ... 1983: t.p. (Armstrong World Industries, Lancaster, Pa.) | | | | |