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izlaidumi no Barbara Gardner Conklin

Cover for Barbara Gardner Conklin · Organic Chemistry Science Fair Projects (Chemistry Science Projects Using the Scientific Method) (Hardcover Book) [Rev Exp edition] (2010)

Rev Exp edition

Organic Chemistry Science Fair P... (2010)

Barbara Gardner Conklin

Cover for Barbara Gardner Conklin · Ace Your Human Biology Science Project: Great Science Fair Ideas (Ace Your Biology Science Project) (Hardcover Book) (2009)

Ace Your Human Biology Science P... (2009)

Barbara Gardner Conklin

Cover for Barbara Gardner Conklin · Ace Your Animal Science Project: Great Science Fair Ideas (Ace Your Biology Science Project) (Hardcover Book) (2009)

Ace Your Animal Science Project:... (2009)

Barbara Gardner Conklin

Cover for Barbara Gardner Conklin · Encyclopedia of Forensic Science: A Compendium of Detective Fact and Fiction (Hardcover Book) (2002)

Encyclopedia of Forensic Science... (2002)

Barbara Gardner Conklin