/cgi-bin/koha/opac-search.pl?q=ccl=au%3A%22Wells%2C%20Roger%20Clark%2C%22&sort_by=relevance&format=rss 3 0 50 ISBN: /cgi-bin/koha/opac-detail.pl?biblionumber=25395 By Wells, Roger Clark,.
Washington, Govt. Print. Off., 1914 .
78 p. : , Includes index. 24 cm..

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]]> /cgi-bin/koha/opac-detail.pl?biblionumber=25395 ISBN: /cgi-bin/koha/opac-detail.pl?biblionumber=25589 By Wells, Roger Clark,.
Washington, Govt. Print. Off., 1915 .
46 p. : 24 cm..

]]> Place hold on The Fractional precipitation of some ore-forming compounds at moderate temperatures /

]]> /cgi-bin/koha/opac-detail.pl?biblionumber=25589 ISBN: /cgi-bin/koha/opac-detail.pl?biblionumber=27338 By Wells, Roger Clark,.
Washington, U.S. Govt. Print. Off., 1937 .
x, 134 p. , At head of title: United States Department of the Interior. 23 cm..

]]> Place hold on Analyses of rocks and minerals from the laboratory of the United States Geological Survey, 1914-36,

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