7.
American Drug Index 2011 : Published by Facts and Comparisons
by Billups, Norman F., Billups...
ISBN: 9781574393187
List Price: $90.95
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American Drug Index 2010: Published by Facts & Comparisons
by Billups, Norman F., Stedman...
ISBN: 9781574393057
List Price: $89.95
11.
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American Drug Index 1977 - Norman F. Billups - Hardcover
by Billups, Norman F.
ISBN: 9780397503728
List Price: $14.50
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23.
American Drug Index 1998 (Serial)
by Norman F., Ph.D. Billups
ISBN: 9781574390292
List Price: $49.95
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