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QA166.7 .C66 1988 (2)
QA211 .C13 1969 (2)
QA274 .L4 1983 (2)
QA76.76.R95 N38 1987b (2)
QA911 .B86 1988b (2)
QB991.E94 E33 1987 (2)
QC151.7 (2)
QC174.1 .H4 1950 (2)
QC174.12 .S38813 2005 (2)
QC175,QC175 J45 1982 (2)