<![CDATA[author results for Walker, Hollis N.]]>https://gateway.bibliocommons.com/v2/libraries/chipublib/rss/search?query=Walker%2C%20Hollis%20N.&searchType=author&origin=core-catalog-explore&view=groupedRSS for NodeWed, 07 Oct 2026 04:33:01 GMT<![CDATA[Petrographic Methods of Examining Hardened Concrete]]>https://chipublib.bibliocommons.com/v2/record/S126C2061409https://chipublib.bibliocommons.com/v2/record/S126C2061409Tue, 31 Jan 2006 00:00:00 GMThttps://chipublib.bibliocommons.com/item/comment/2061409126WEBSITEA Petrographic Manualeng